List of nuclides

This list of nuclides shows observed nuclides that either are stable or, if radioactive, have half-lives longer than one hour. This represents isotopes of the first 105 elements, except for elements 87 (francium), 102 (nobelium) and 104 (rutherfordium). At least 3,300 nuclides have been experimentally characterized[1] (see List of radioactive nuclides by half-life for the nuclides with decay half-lives less than one hour).

A nuclide is defined conventionally as an experimentally examined bound collection of protons and neutrons that either is stable or has an observed decay mode.

## Introduction[edit]

There are 251 known so-called stable nuclides. Many of these in theory could decay through spontaneous fission, alpha decay, double beta decay, etc. with a very long half-life, but no radioactive decay has yet been observed. Thus, the number of stable nuclides is subject to change if some of these 251 are determined to be very long-lived radioactive nuclides in the future. In this article, the "stable" nuclides are divided into three tables, one for nuclides that are theoretically stable (meaning no decay mode is possible) and nuclides that can theoretically undergo spontaneous fission but have not been evaluated to check for evidence of this happening, one for nuclides that can theoretically undergo forms of decay other than spontaneous fission but have not been evaluated, and finally a table of nuclides that can theoretically decay and have been evaluated but without detecting any decay. In this latter table, where a decay has been predicted theoretically but never observed experimentally (either directly or through finding an excess of the daughter), the theoretical decay mode is given in parentheses and have "> number" in the half-life column to show the lower limit for the half-life based on experimental observation. Such nuclides are considered to be "stable" until a decay has been observed in some fashion. For example, tellurium-123 was reported to be radioactive, but the same experimental group later retracted this report, and it presently remains observationally stable.

The next group is the primordial radioactive nuclides. These have been measured to be radioactive, or decay products have been identified (tellurium-128, barium-130). There are (currently) 35 of these (see these nuclides), of which 25 have half-lives longer than 1013 years. With most of these 25, decay is difficult to observe and for most purposes they can be regarded as effectively stable. Bismuth-209 is notable as it is the only naturally occurring isotope of an element which was long considered stable. A further 10 nuclides, platinum-190, samarium-147, lanthanum-138, rubidium-87, rhenium-187, lutetium-176, thorium-232, uranium-238, potassium-40, and uranium-235 have half-lives between 7.0×108 and 4.83×1011 years, which means they have experienced at least 0.5% depletion since the formation of the Solar System about 4.6×109 years ago, but still exist on Earth in significant quantities. They are the primary source of radiogenic heating and radioactive decay products. Together, there are a total of 286 primordial nuclides.[a]

The list then covers the ~700 radionuclides with half-lives longer than 1 hour, split into two tables, half-lives greater than one day and less than one day.

Over 60 nuclides that have half-lives too short to be primordial can be detected in nature as a result of later production by natural processes, mostly in trace amounts. These include ~44 radionuclides occurring in the decay chains of primordial uranium and thorium (radiogenic nuclides), such as radon-222. Others are the products of interactions with energetic cosmic-rays (e.g. cosmic ray spallation) (cosmogenic nuclides), such as carbon-14. This gives a total of about 350 naturally occurring nuclides. Other nuclides may be occasionally produced naturally by rare cosmogenic interactions or as a result of other natural nuclear reactions (nucleogenic nuclides), but are difficult to detect.

Further shorter-lived nuclides have been detected in the spectra of stars, such as isotopes of technetium, promethium, and some actinides. The remaining nuclides are known solely from artificial nuclear transmutation. Some, such as caesium-137, are found in the environment but as a result of contamination from releases of man-made nuclear fission product (from nuclear weapons, nuclear reactors, and other processes). Other are produced artificially for industrial or medical purposes.

## List legend[edit]

Each group of radionuclides, starting with the longest-lived primordial radionuclides, is sorted by decreasing half-life, but the tables are sortable by other columns.

no (number) column
A running positive integer for reference. This number, i.e. position in this table, might be changed in the future, especially for nuclides with short half-lives.
nuclide column
Nuclide identifiers are given by their atomic mass number A and the symbol for the corresponding chemical element (corresponding to the unique proton number). In the cases that this is not the ground state, this is indicated by a m for metastable appended to the mass number. Sorting here sorts by mass number.
Z, N column
The number of protons (Z column) and number of neutrons (N column).
energy column
The column labeled "energy" denotes the energy equivalent of the mass of a neutron minus the mass per nucleon of this nuclide (so all nuclides get a positive value) in MeV, formally: mn − mnuclide / A, where A = Z \+ N is the mass number. Note that this means that a higher "energy" value actually means that the nuclide has a lower energy. The mass of the nuclide (in daltons) is A (mn − E / k) where E is the energy, mn is 1.008664916 Da and k = 931.49410242 the conversion factor between MeV and daltons.
half-life column
The main column shows times in seconds (31,556,926 seconds = 1 tropical year); a second column showing half-life in more usual units (year, day) is also provided.
Entries starting with a ">" indicates that no decay has ever been observed, with null experiments establishing lower limits for the half-life. Such elements are considered stable unless a decay can be observed (establishing an actual estimate for the half-life). Note half-lives may be imprecise estimates and can be subject to significant revision.
decay mode column

α  | α decay

|

β− | β− decay
β−β− | double β− decay
ε  | electron capture
β+ | β+ decay
β+β+ | double β+ decay
SF  | spontaneous fission
IT  | isomeric transition
Decay modes in parentheses are still not observed through experiment but are, by their energy, predicted to occur. Numbers in brackets indicate probability of that decay mode occurring in %, tr indicate <0.1%. Spontaneous fission is not shown as a theoretical decay mode for stable nuclides where other modes are possible (see these nuclides).
decay energy column
Multiple values for (maximal) decay energy are mapped to decay modes in their order. The decay energy listed is for the specific nuclide only, not for the whole decay chain. It includes the energy lost to neutrinos.
notes column

Cosmogenic nuclide;

Naturally occurring decay product (of thorium-232, uranium-238, and uranium-235);
ESS
Present in the early Solar System (first few million years), but extinct now as a primordial nuclide.

Nuclear fission product (only those from uranium-235 or plutonium-239) (only those with a half-life over one day are shown);

Industry or medically used radionuclide.[2]

## Full list[edit]

### Theoretically stable nuclides[edit]

Main article: Stable nuclide

These are the theoretically stable nuclides, ordered by "energy".

No. | Nuclide | A | Z | N | Energy
(MeV)

|
|
|
|
|

1 | 56Fe | 56 | 26 | 30 | 9.153567
2 | 62Ni | 62 | 28 | 34 | 9.147877
3 | 60Ni | 60 | 28 | 32 | 9.145862
4 | 58Fe | 58 | 26 | 32 | 9.142938
5 | 52Cr | 52 | 24 | 28 | 9.137037
6 | 57Fe | 57 | 26 | 31 | 9.127119
7 | 59Co | 59 | 27 | 32 | 9.126046
8 | 54Cr | 54 | 24 | 30 | 9.125633
9 | 61Ni | 61 | 28 | 33 | 9.124129
10 | 55Mn | 55 | 25 | 30 | 9.120611
11 | 64Ni | 64 | 28 | 36 | 9.119754
12 | 66Zn | 66 | 30 | 36 | 9.115258
13 | 53Cr | 53 | 24 | 29 | 9.114435
14 | 63Cu | 63 | 29 | 34 | 9.112272
15 | 65Cu | 65 | 29 | 36 | 9.106154
16 | 68Zn | 68 | 30 | 38 | 9.100845
17 | 50Ti | 50 | 22 | 28 | 9.099861
18 | 51V | 51 | 23 | 28 | 9.094884
19 | 67Zn | 67 | 30 | 37 | 9.084468
20 | 48Ti | 48 | 22 | 26 | 9.081488
21 | 72Ge | 72 | 32 | 40 | 9.079465
22 | 70Ge | 70 | 32 | 38 | 9.079372
23 | 69Ga | 69 | 31 | 38 | 9.076078
24 | 88Sr | 88 | 38 | 50 | 9.070438
25 | 74Ge | 74 | 32 | 42 | 9.063522
26 | 49Ti | 49 | 22 | 27 | 9.062323
27 | 76Se | 76 | 34 | 42 | 9.061485
28 | 71Ga | 71 | 31 | 40 | 9.059218
29 | 78Se | 78 | 34 | 44 | 9.058842
30 | 90Zr | 90 | 40 | 50 | 9.057631
31 | 89Y | 89 | 39 | 50 | 9.056743
32 | 86Sr | 86 | 38 | 48 | 9.054160
33 | 82Kr | 82 | 36 | 46 | 9.054126
34 | 84Kr | 84 | 36 | 48 | 9.052649
35 | 73Ge | 73 | 32 | 41 | 9.048006
36 | 87Sr | 87 | 38 | 49 | 9.046964
37 | 75As | 75 | 33 | 42 | 9.045093
38 | 80Kr | 80 | 36 | 44 | 9.044984
39 | 77Se | 77 | 34 | 43 | 9.040153
40 | 85Rb | 85 | 37 | 48 | 9.037998
41 | 91Zr | 91 | 40 | 51 | 9.037156
42 | 83Kr | 83 | 36 | 47 | 9.034966
43 | 79Br | 79 | 35 | 44 | 9.034220
44 | 81Br | 81 | 35 | 46 | 9.033979
45 | 92Zr | 92 | 40 | 52 | 9.032783
46 | 46Ti | 46 | 22 | 24 | 9.030532
47 | 47Ti | 47 | 22 | 25 | 9.027336
48 | 44Ca | 44 | 20 | 24 | 9.013793
49 | 94Mo | 94 | 42 | 52 | 9.011856
50 | 93Nb | 93 | 41 | 52 | 9.009051
51 | 96Mo | 96 | 42 | 54 | 8.996229
52 | 95Mo | 95 | 42 | 53 | 8.994564
53 | 42Ca | 42 | 20 | 22 | 8.989116
54 | 38Ar | 38 | 18 | 20 | 8.984870
55 | 45Sc | 45 | 21 | 24 | 8.983945
56 | 97Mo | 97 | 42 | 55 | 8.973806
57 | 98Ru | 98 | 44 | 54 | 8.971572
58 | 43Ca | 43 | 20 | 23 | 8.964551
59 | 100Ru | 100 | 44 | 56 | 8.963517
60 | 99Ru | 99 | 44 | 55 | 8.956348
61 | 34S | 34 | 16 | 18 | 8.951675
62 | 40Ar | 40 | 18 | 22 | 8.947325
63 | 102Ru | 102 | 44 | 58 | 8.944837
64 | 101Ru | 101 | 44 | 57 | 8.942117
65 | 41K | 41 | 19 | 22 | 8.938623
66 | 39K | 39 | 19 | 20 | 8.938174
67 | 104Pd | 104 | 46 | 58 | 8.930847
68 | 37Cl | 37 | 17 | 20 | 8.929760
69 | 103Rh | 103 | 45 | 58 | 8.925910
70 | 36S | 36 | 16 | 20 | 8.923108
71 | 106Pd | 106 | 46 | 60 | 8.919460
72 | 105Pd | 105 | 46 | 59 | 8.913356
73 | 35Cl | 35 | 17 | 18 | 8.900285
74 | 108Pd | 108 | 46 | 62 | 8.900253
75 | 107Ag | 107 | 47 | 60 | 8.897514
76 | 110Cd | 110 | 48 | 62 | 8.892718
77 | 30Si | 30 | 14 | 16 | 8.885761
78 | 109Ag | 109 | 47 | 62 | 8.885300
79 | 32S | 32 | 16 | 16 | 8.884318
80 | 33S | 33 | 16 | 17 | 8.876964
81 | 31P | 31 | 15 | 16 | 8.859744
82 | 28Si | 28 | 14 | 14 | 8.838935
83 | 29Si | 29 | 14 | 15 | 8.826327
84 | 112Cd | 112 | 48 | 64 | 8.880077
85 | 111Cd | 111 | 48 | 63 | 8.875445
86 | 114Sn | 114 | 50 | 64 | 8.865722
87 | 113In | 113 | 49 | 64 | 8.862212
88 | 116Sn | 116 | 50 | 66 | 8.860362
89 | 115Sn | 115 | 50 | 65 | 8.854249
90 | 118Sn | 118 | 50 | 68 | 8.848073
91 | 117Sn | 117 | 50 | 67 | 8.843977
92 | 120Sn | 120 | 50 | 70 | 8.830537
93 | 119Sn | 119 | 50 | 69 | 8.828201
94 | 121Sb | 121 | 51 | 70 | 8.811783
95 | 122Te | 122 | 52 | 70 | 8.811606
96 | 124Te | 124 | 52 | 72 | 8.801364
97 | 123Sb | 123 | 51 | 72 | 8.796727
98 | 126Te | 126 | 52 | 74 | 8.786126
99 | 125Te | 125 | 52 | 73 | 8.783505
100 | 128Xe | 128 | 54 | 74 | 8.773359
101 | 127I | 127 | 53 | 74 | 8.771981
102 | 130Xe | 130 | 54 | 76 | 8.762725
103 | 129Xe | 129 | 54 | 75 | 8.758904
104 | 132Xe | 132 | 54 | 78 | 8.747695
105 | 131Xe | 131 | 54 | 77 | 8.746253
106 | 134Ba | 134 | 56 | 78 | 8.735133
107 | 133Cs | 133 | 55 | 78 | 8.733515
108 | 136Ba | 136 | 56 | 80 | 8.724908
109 | 135Ba | 135 | 56 | 79 | 8.722072
110 | 137Ba | 137 | 56 | 81 | 8.711628
111 | 138Ba | 138 | 56 | 82 | 8.710904
112 | 27Al | 27 | 13 | 14 | 8.708242
113 | 140Ce | 140 | 58 | 82 | 8.700494
114 | 139La | 139 | 57 | 82 | 8.698892
115 | 26Mg | 26 | 12 | 14 | 8.694981
116 | 141Pr | 141 | 59 | 82 | 8.681405
117 | 142Nd | 142 | 60 | 82 | 8.676646
118 | 24Mg | 24 | 12 | 12 | 8.651911
119 | 25Mg | 25 | 12 | 13 | 8.599047
120 | 156Gd | 156 | 64 | 92 | 8.536342
121 | 157Gd | 157 | 64 | 93 | 8.522478
122 | 158Gd | 158 | 64 | 94 | 8.518775
123 | 159Tb | 159 | 65 | 94 | 8.508680
124 | 23Na | 23 | 11 | 12 | 8.485675
125 | 163Dy | 163 | 66 | 97 | 8.478607
126 | 164Dy | 164 | 66 | 98 | 8.473604
127 | 22Ne | 22 | 10 | 12 | 8.436087
128 | 20Ne | 20 | 10 | 10 | 8.423422
129 | 16O | 16 | 8 | 8 | 8.367390
130 | 21Ne | 21 | 10 | 11 | 8.344280
131 | 19F | 19 | 9 | 10 | 8.149612
132 | 17O | 17 | 8 | 9 | 8.118904
133 | 18O | 18 | 8 | 10 | 8.114744
134 | 12C | 12 | 6 | 6 | 8.071327
135 | 15N | 15 | 7 | 8 | 8.064594
136 | 14N | 14 | 7 | 7 | 7.866827
137 | 13C | 13 | 6 | 7 | 7.830943
138 | 4He | 4 | 2 | 2 | 7.465077
139 | 11B | 11 | 5 | 6 | 7.283337
140 | 10B | 10 | 5 | 5 | 6.866257
141 |  9Be | 9 | 4 | 5 | 6.810483
142 |  7Li | 7 | 3 | 4 | 5.941599
143 |  6Li | 6 | 3 | 3 | 5.723527
144 |  3He | 3 | 2 | 1 | 3.094327
145 |  2H | 2 | 1 | 1 | 1.503327
146 |  1H | 1 | 1 | 0 | 0.782327

### Nuclides that are observationally stable, having theoretical decay modes other than spontaneous fission[edit]

Ordered by "energy".

No. | Nuclide | A | Z | N | Energy | Decay mode | Decay energy
(MeV)

|
|
|
|
|
|
|

147 |  80Se | 80 | 34 | 46 | 9.043326 | (β−β−) | 0.134
148 |  86Kr | 86 | 36 | 50 | 9.039532 | (β−β−) | 1.256
149 |  84Sr | 84 | 38 | 46 | 9.031375 | (β+β+) | 1.787
150 | 102Pd | 102 | 46 | 56 | 8.933337 | (β+β+) | 1.172
151 | 104Ru | 104 | 44 | 60 | 8.918337 | (β−β−) | 1.300
152 |  36Ar | 36 | 18 | 18 | 8.911105 | (β+β+) | 0.433
153 | 122Sn | 122 | 50 | 72 | 8.808590 | (β−β−) | 0.366
154 | 143Nd | 143 | 60 | 83 | 8.658792 | (α) | 0.521
155 | 150Sm | 150 | 62 | 88 | 8.585043 | (α) | 1.449
156 | 152Sm | 152 | 62 | 90 | 8.563227 | (α) | 0.220
157 | 154Gd | 154 | 64 | 90 | 8.549985 | (α) | 0.081
158 | 155Gd | 155 | 64 | 91 | 8.536341 | (α) | 0.081
159 | 164Er | 164 | 68 | 96 | 8.473462 | (β+β+, α) | 0.024, 1.304
160 | 165Ho | 165 | 67 | 98 | 8.464689 | (α) | 0.139
161 | 166Er | 166 | 68 | 98 | 8.462482 | (α) | 0.831
162 | 167Er | 167 | 68 | 99 | 8.450350 | (α) | 0.666
163 | 168Er | 168 | 68 | 100 | 8.446308 | (α) | 0.553
164 | 169Tm | 169 | 69 | 100 | 8.433931 | (α) | 1.200
165 | 170Yb | 170 | 70 | 100 | 8.428792 | (α) | 1.738
166 | 171Yb | 171 | 70 | 101 | 8.418182 | (α) | 1.559
167 | 172Yb | 172 | 70 | 102 | 8.415864 | (α) | 1.310
168 | 173Yb | 173 | 70 | 103 | 8.404023 | (α) | 0.946
169 | 174Yb | 174 | 70 | 104 | 8.398624 | (α) | 0.740
170 | 175Lu | 175 | 71 | 104 | 8.386589 | (α) | 1.620
171 | 181Ta | 181 | 73 | 108 | 8.338961 | (α) | 1.526
172 | 185Re | 185 | 75 | 110 | 8.308204 | (α) | 2.195
173 | 191Ir | 191 | 77 | 114 | 8.263508 | (α) | 2.084
174 | 194Pt | 194 | 78 | 116 | 8.250519 | (α) | 1.504
175 | 193Ir | 193 | 77 | 116 | 8.250259 | (α) | 1.017
176 | 195Pt | 195 | 78 | 117 | 8.239516 | (α) | 1.158
177 | 196Pt | 196 | 78 | 118 | 8.237896 | (α) | 0.794
178 | 197Au | 197 | 79 | 118 | 8.229404 | (α) | 0.954
179 | 198Hg | 198 | 80 | 118 | 8.227663 | (α) | 1.383
180 | 199Hg | 199 | 80 | 119 | 8.219805 | (α) | 0.824
181 | 200Hg | 200 | 80 | 120 | 8.218848 | (α) | 0.718
182 | 201Hg | 201 | 80 | 121 | 8.208956 | (α) | 0.334
183 | 202Hg | 202 | 80 | 122 | 8.206703 | (α) | 0.136
184 | 203Tl | 203 | 81 | 122 | 8.198230 | (α) | 0.911
185 | 204Hg | 204 | 80 | 124 | 8.192358 | (β−β−) | 0.416
186 | 205Tl | 205 | 81 | 124 | 8.187526 | (α) | 0.157

### Observationally stable nuclides for which decay has been searched for but not found (only lower bounds known)[edit]

Ordered by lower bound on half-life.

No. | Nuclide | A | Z | N | Energy | Half-life
(seconds) | Half-life
(years) | Decay mode | Decay energy
(MeV)

|
|
|
|
|
|
|
|
|

187 | 40Ca | 40 | 20 | 20 | 8.942485 | > 3.1×1029 | > 9.9×1021[3] | (β+β+) | 0.194
188 | 184W | 184 | 74 | 110 | 8.319737 | > 2.8×1029 | > 8.9×1021[3] | (α) | 1.656
189 | 182W | 182 | 74 | 108 | 8.336424 | > 2.4×1029 | > 7.7×1021[3] | (α) | 1.772
190 | 208Pb | 208 | 82 | 126 | 8.175888 | > 8.2×1028 | > 2.6×1021[4] | (α) | 0.519
191 | 206Pb | 206 | 82 | 124 | 8.186791 | > 7.9×1028 | > 2.5×1021[4] | (α) | 1.137
192 | 126Xe | 126 | 54 | 72 | 8.779010 | > 6.0×1028 | > 1.9×1021[5] | (β+β+) | 0.897
193 | 207Pb | 207 | 82 | 125 | 8.179791 | > 6.0×1028 | > 1.9×1021[4] | (α) | 0.391
194 | 120Te | 120 | 52 | 68 | 8.816369 | > 5.0×1028 | > 1.6×1021[3] | (β+β+) | 1.700
195 | 106Cd | 106 | 48 | 58 | 8.893327 | > 3.5×1028 | > 1.1×1021[3] | (β+β+) | 2.770
196 | 134Xe | 134 | 54 | 80 | 8.728973 | > 2.7×1028 | > 8.7×1020[6] | (β−β−) | 0.825
197 | 58Ni | 58 | 28 | 30 | 9.109736 | > 2.2×1028 | > 7.0×1020[3] | (β+β+) | 1.926
198 | 183W | 183 | 74 | 109 | 8.324699 | > 2.1×1028 | > 6.7×1020[3] | (α) | 1.680
199 | 54Fe | 54 | 26 | 28 | 9.113040 | > 1.4×1028 | > 4.4×1020[7] | (β+β+) | 0.680
200 | 132Ba | 132 | 56 | 76 | 8.741288 | > 9.5×1027 | > 3.0×1020[3] | (β+β+) | 0.846
201 | 110Pd | 110 | 46 | 64 | 8.874500 | > 9.1×1027 | > 2.9×1020[3] | (β−β−) | 2.000
202 | 92Mo | 92 | 42 | 50 | 9.014860 | > 6.0×1027 | > 1.9×1020[3] | (β+β+) | 1.649
203 | 204Pb | 204 | 82 | 122 | 8.194414 | > 4.4×1027 | > 1.4×1020[4] | (α) | 1.972
204 | 112Sn | 112 | 50 | 62 | 8.862944 | > 3.1×1027 | > 9.7×1019[8] | (β+β+) | 1.922
205 | 96Ru | 96 | 44 | 52 | 8.967911 | > 2.5×1027 | > 8.0×1019[3] | (β+β+) | 2.719
206 | 192Os | 192 | 76 | 116 | 8.258202 | > 1.7×1027 | > 5.3×1019[3] | (β−β−, α) | 0.413, 0.362
207 | 198Pt | 198 | 78 | 120 | 8.222378 | > 1.0×1027 | > 3.2×1019[9] | (β−β−, α) | 1.047, 0.087
208 | 160Gd | 160 | 64 | 96 | 8.496009 | > 9.8×1026 | > 3.1×1019[3] | (β−β−) | 1.729
209 | 144Sm | 144 | 62 | 82 | 8.640577 | > 4.4×1026 | > 1.4×1019[10] | (β+β+) | 1.781
210 | 190Os | 190 | 76 | 114 | 8.275045 | > 3.8×1026 | > 1.2×1019[11] | (α) | 1.378
211 | 64Zn | 64 | 30 | 34 | 9.102634 | > 3.5×1026 | > 1.1×1019[12] | (β+β+) | 1.096
212 | 74Se | 74 | 34 | 40 | 9.047175 | > 2.2×1026 | > 7.0×1018[13] | (β+β+) | 1.209
213 | 186W | 186 | 74 | 112 | 8.299873 | > 1.3×1026 | > 4.1×1018[3] | (α) | 1.123
214 | 70Zn | 70 | 30 | 40 | 9.065109 | > 1.2×1026 | > 3.8×1018[3] | (β−β−) | 0.998
215 | 188Os | 188 | 76 | 112 | 8.290138 | > 1.0×1026 | > 3.3×1018[11] | (α) | 2.143
216 | 148Nd | 148 | 60 | 88 | 8.594388 | > 9.5×1025 | > 3.0×1018[3] | (β−β−, α) | 1.929, 0.599
217 | 142Ce | 142 | 58 | 84 | 8.666666 | > 9.1×1025 | > 2.9×1018[3] | (β−β−, α) | 1.417, 1.298
218 | 179Hf | 179 | 72 | 107 | 8.353293 | > 8.5×1025 | > 2.7×1018[14] | (α) | 1.806
219 | 196Hg | 196 | 80 | 116 | 8.233710 | > 7.9×1025 | > 2.5×1018[3] | (β+β+, α) | 0.820, 2.027
220 | 154Sm | 154 | 62 | 92 | 8.541857 | > 7.3×1025 | > 2.3×1018[3] | (β−β−) | 1.251
221 | 146Nd | 146 | 60 | 86 | 8.625649 | > 5.0×1025 | > 1.6×1018[3] | (β−β−, α) | 0.070, 1.182
222 | 50Cr | 50 | 24 | 26 | 9.076517 | > 4.1×1025 | > 1.3×1018[3] | (β+β+) | 1.167
223 | 178Hf | 178 | 72 | 106 | 8.365958 | > 4.1×1025 | > 1.3×1018[14] | (α) | 2.083
224 | 177Hf | 177 | 72 | 105 | 8.370139 | > 3.5×1025 | > 1.1×1018[14] | (α) | 2.245
225 | 156Dy | 156 | 66 | 90 | 8.523443 | > 3.2×1025 | > 1.0×1018[3] | (β+β+, α) | 2.011, 1.758
226 | 153Eu | 153 | 63 | 90 | 8.550893 | > 1.8×1025 | > 5.5×1017[3] | (α) | 0.274
227 | 180Hf | 180 | 72 | 108 | 8.347930 | > 1.5×1025 | > 4.6×1017[14] | (α) | 1.283
228 | 108Cd | 108 | 48 | 60 | 8.897735 | > 1.3×1025 | > 4.1×1017[3] | (β+β+) | 0.272
229 | 170Er | 170 | 68 | 102 | 8.424945 | > 1.3×1025 | > 4.1×1017[3] | (β−β−, α) | 0.654, 0.050
230 | 138Ce | 138 | 58 | 80 | 8.705878 | > 1.3×1025 | > 4.0×1017[15] | (β+β+) | 0.694
231 | 180mTa | 180 | 73 | 107 | 8.342767 | > 9.1×1024 | > 2.9×1017[16] | (β−, ε, α) | 0.783, 0.929, 2.103
232 | 176Hf | 176 | 72 | 104 | 8.381427 | > 8.5×1024 | > 2.7×1017[14] | (α) | 2.255
233 | 46Ca | 46 | 20 | 26 | 9.009047 | > 5.7×1024 | > 1.8×1017[17] | (β−β−) | 0.988
234 | 176Yb | 176 | 70 | 106 | 8.375271 | > 5.0×1024 | > 1.6×1017[3] | (β−β−, α) | 1.083, 0.570
235 | 94Zr | 94 | 40 | 54 | 8.999698 | > 3.5×1024 | > 1.1×1017[3] | (β−β−) | 1.144
236 | 124Sn | 124 | 50 | 74 | 8.782914 | > 3.2×1024 | > 1.0×1017[3] | (β−β−) | 2.287
237 | 162Dy | 162 | 66 | 96 | 8.492234 | > 3.2×1024 | > 1.0×1017[18] | (α) | 0.085
238 | 136Ce | 136 | 58 | 78 | 8.707122 | > 3.0×1024 | > 9.6×1016[15] | (β+β+) | 2.419
239 | 114Cd | 114 | 48 | 66 | 8.860985 | > 2.9×1024 | > 9.2×1016[3] | (β−β−) | 0.540
240 | 123Te | 123 | 52 | 71 | 8.796302 | > 2.9×1024 | > 9.2×1016[19] | (ε) | 0.052
241 | 145Nd | 145 | 60 | 85 | 8.632963 | > 1.9×1024 | > 6.0×1016[3] | (α) | 1.578
242 | 192Pt | 192 | 78 | 114 | 8.260353 | > 1.9×1024 | > 6.0×1016[3] | (α) | 2.418
243 | 161Dy | 161 | 66 | 95 | 8.494067 | > 1.1×1024 | > 3.5×1016[18] | (α) | 0.344
244 | 160Dy | 160 | 66 | 94 | 8.506816 | > 2.7×1023 | > 8.5×1015[18] | (α) | 0.439
245 | 189Os | 189 | 76 | 113 | 8.277599 | > 1.1×1023 | > 3.5×1015[11] | (α) | 1.976
246 | 187Os | 187 | 76 | 111 | 8.291746 | > 1.0×1023 | > 3.2×1015[11] | (α) | 2.720
247 | 149Sm | 149 | 62 | 87 | 8.589058 | > 6.3×1022 | > 2.0×1015[3] | (α) | 1.870
248 | 158Dy | 158 | 66 | 92 | 8.516973 | > 3.2×1022 | > 1.0×1015[18] | (β+β+, α) | 0.283, 0.875
249 | 162Er | 162 | 68 | 94 | 8.480852 | > 4.4×1021 | > 1.4×1014[3] | (β+β+, α) | 1.844, 1.646
250 | 168Yb | 168 | 70 | 98 | 8.437845 | > 4.1×1021 | > 1.3×1014[3] | (β+β+, α) | 1.422, 1.951
251 | 98Mo | 98 | 42 | 56 | 8.970426 | > 3.2×1021 | > 1.0×1014[3] | (β−β−) | 0.112

### Primordial radioactive nuclides (half-life > 5 × 108 years)[edit]

Main article: Primordial nuclide

Ordered by half-life.

No.  | Nuclide  | A | Z | N  | Energy  | Half-life  | Decay mode  | Decay energy
(MeV)

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(seconds) | (years)
252 | 128Te | 128 | 52 | 76 | 8.743261 | 6.94×1031 | 2.2×1024 | β−β− | 0.868
253 | 124Xe | 124 | 54 | 70 | 8.778264 | 5.68×1029 | 1.8×1022 | εε | 2.864
254 | 78Kr | 78 | 36 | 42 | 9.022349 | 2.90×1029 | 9.2×1021 | εε | 2.846
255 | 136Xe | 136 | 54 | 82 | 8.706805 | 7.5×1028 | 2.38×1021 | β−β− | 2.462
256 | 76Ge | 76 | 32 | 44 | 9.034656 | 5.642×1028 | 1.8×1021 | β−β− | 2.039
257 | 130Ba | 130 | 56 | 74 | 8.742574 | 3.79×1028 | 1.2×1021 | εε | 2.620
258 | 82Se | 82 | 34 | 48 | 9.017596 | 3.408×1027 | 1.1×1020 | β−β− | 2.995
259 | 48Ca | 48 | 20 | 28 | 8.992452 | 1.766×1027 | 5.6×1019[3] | β−β− | 4.274
260 | 116Cd | 116 | 48 | 68 | 8.836146 | 9.783×1026 | 3.1×1019 | β−β− | 2.809
261 | 209Bi | 209 | 83 | 126 | 8.158689 | 6.343×1026 | 2.01×1019 | α | 3.137
262 | 96Zr | 96 | 40 | 56 | 8.961359 | 6.3×1026 | 2.0×1019 | β−β− | 3.348
263 | 130Te | 130 | 52 | 78 | 8.766578 | 2.777×1026 | 8.8×1018 | β−β− | 2.530
264 | 150Nd | 150 | 60 | 90 | 8.562594 | 2.493×1026 | 7.9×1018 | β−β− | 3.367
265 | 100Mo | 100 | 42 | 58 | 8.933167 | 2.461×1026 | 7.8×1018 | β−β− | 3.035
266 | 151Eu | 151 | 63 | 88 | 8.565759 | 1.458×1026 | 4.62×1018 | α | 1.964
267 | 180W | 180 | 74 | 106 | 8.347127 | 5.680×1025 | 1.8×1018 | α | 2.509
268 | 50V | 50 | 23 | 27 | 9.055759 | 4.418×1024 | 1.4×1017 | β+, β− | 2.205, 1.038
269 | 174Hf | 174 | 72 | 102 | 8.392287 | 2.2×1024 | 7.0×1016[20] | α | 2.497
270 | 113Cd | 113 | 48 | 65 | 8.859372 | 2.430×1023 | 7.7×1015 | β− | 0.321
271 | 148Sm | 148 | 62 | 86 | 8.607423 | 1.988×1023 | 6.3×1015 | α | 1.986
272 | 144Nd | 144 | 60 | 84 | 8.652947 | 7.227×1022 | 2.29×1015 | α | 1.905
273 | 186Os | 186 | 76 | 110 | 8.302508 | 6.312×1022 | 2.0×1015 | α | 2.823
274 | 115In | 115 | 49 | 66 | 8.849910 | 1.392×1022 | 4.4×1014 | β− | 0.499
275 | 152Gd | 152 | 64 | 88 | 8.562868 | 3.408×1021 | 1.1×1014 | α | 2.203
276 | 184Os | 184 | 76 | 108 | 8.311850 | 3.53×1020 | 1.12×1013 | α | 2.963
277 | 190Pt | 190 | 78 | 112 | 8.267764 | 1.524×1019 | 4.83×1011 | α | 3.252
278 | 147Sm | 147 | 62 | 85 | 8.610593 | 3.364×1018 | 1.066×1011 | α | 2.310
279 | 138La | 138 | 57 | 81 | 8.698320 | 3.219×1018 | 1.02×1011 | ε, β− | 1.737, 1.044
280 | 87Rb | 87 | 37 | 50 | 9.043718 | 1.568×1018 | 4.97×1010 | β− | 0.283
281 | 187Re | 187 | 75 | 112 | 8.291732 | 1.300×1018 | 4.12×1010 | β− | 0.0026
282 | 176Lu | 176 | 71 | 105 | 8.374665 | 1.187×1018 | 3.764×1010 | β− | 1.193
283 | 232Th | 232 | 90 | 142 | 7.918533 | 4.434×1017 | 1.406×1010 | α, SF | 4.083
284 | 238U | 238 | 92 | 146 | 7.872551 | 1.410×1017 | 4.471×109 | α, SF, β−β− | 4.270
285 | 40K | 40 | 19 | 21 | 8.909707 | 3.938×1016 | 1.25×109 | β−, ε, β+ | 1.311, 1.505, 1.505
286 | 235U | 235 | 92 | 143 | 7.897198 | 2.222×1016 | 7.04×108 | α, SF | 4.679

### Radionuclides with half-lives of 10,000 years to 5 × 108 years[edit]

Ordered by half-life. Some of these are known to have been present in the early Solar System (marked "ESS", meaning the first few million years of the Solar System's history), because of an excess of their decay products.[21]

No. | Nuclide | Z | N | Energy | Half-life | Decay mode | Notes

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(seconds) | (years)
287 | 146Sm | 62 | 84 | 8.626136 | 3.250×1015 | 1.03×108 | α | ESS[21]
288 | 244Pu | 94 | 150 | 7.826221 | 2.525×1015 | 8.0×107 | α, SF | interstellar,[22] ESS[21]
289 | 92Nb | 41 | 51 | 9.010980 | 1.095×1015 | 3.47×107 | β+, β− | CG, ESS[21]
290 | 236U | 92 | 144 | 7.891470 | 7.391×1014 | 2.34×107 | α, SF | DP
291 | 205Pb | 82 | 123 | 8.187279 | 5.459×1014 | 1.73×107 | β+ | ESS[21]
292 | 129I | 53 | 76 | 8.757397 | 4.955×1014 | 1.57×107 | β− | CG, FP, ESS[21]
293 | 247Cm | 96 | 151 | 7.806008 | 4.923×1014 | 1.56×107 | α | ESS[21]
294 | 182Hf | 72 | 110 | 8.324399 | 2.809×1014 | 8.90×106 | β− | ESS[21]
295 | 107Pd | 46 | 61 | 8.897197 | 2.051×1014 | 6.50×106 | β− | FP, ESS[21]
296 | 97Tc | 43 | 54 | 8.970503 | 1.329×1014 | 4.21×106 | β+ |
297 | 98Tc | 43 | 55 | 8.953246 | 1.325×1014 | 4.20×106 | β− |
298 | 53Mn | 25 | 28 | 9.103175 | 1.180×1014 | 3.74×106 | β+ | CG, ESS[21]
299 | 60Fe | 26 | 34 | 9.094861 | 8.268×1013 | 2.62×106 | β− | CG,[23] interstellar,[24] ESS[21]
300 | 210mBi | 83 | 127 | 8.140473 | 9.594×1013 | 2.58×106 | α |
301 | 237Np | 93 | 144 | 7.881989 | 6.766×1013 | 2.14×106 | α, SF | DP
302 | 150Gd | 64 | 86 | 8.576454 | 5.649×1013 | 1.79×106 | α |
303 | 93Zr | 40 | 53 | 9.008069 | 4.828×1013 | 1.53×106 | β− | FP
304 | 10Be | 4 | 6 | 6.810657 | 4.765×1013 | 1.51×106 | β− | CG, ESS[21]
305 | 154Dy | 66 | 88 | 8.528457 | 4.415×1013 | 1.40×106[25] | α |
306 | 135Cs | 55 | 80 | 8.720082 | 4.194×1013 | 1.33×106[3] | β− | FP
307 | 26Al | 13 | 13 | 8.540954 | 2.263×1013 | 717000 | β+ | CG, ESS[21]
308 | 242Pu | 94 | 148 | 7.845218 | 1.183×1013 | 375000 | α, SF |
309 | 208Bi | 83 | 125 | 8.162049 | 1.161×1013 | 368000 | β+ |
310 | 248Cm | 96 | 152 | 7.799586 | 1.098×1013 | 348000 | α, SF |
311 | 36Cl | 17 | 19 | 8.891380 | 9.499×1012 | 301000 | β−, β+ | CG, IM
312 | 79Se | 34 | 45 | 9.032310 | 9.309×1012 | 295000 | β− | FP
313 | 234U | 92 | 142 | 7.908308 | 7.747×1012 | 245500 | α, SF | DP
314 | 126Sn | 50 | 76 | 8.754026 | 7.258×1012 | 223000 | β− | FP
315 | 81Kr | 36 | 45 | 9.030513 | 7.227×1012 | 229000 | β+ | CG
316 | 99Tc | 43 | 56 | 8.953379 | 6.662×1012 | 211100 | β− | FP, DP
317 | 186mRe | 75 | 111 | 8.295958 | 6.312×1012 | 200000 | IT |
318 | 233U | 92 | 141 | 7.912873 | 5.024×1012 | 159200 | α, SF | DP
319 | 236Np | 93 | 143 | 7.887514 | 4.860×1012 | 154000 | β+, β−, α |
320 | 41Ca | 20 | 21 | 8.928347 | 3.219×1012 | 102000 | β+ | CG, ESS[21]
321 | 59Ni | 28 | 31 | 9.107863 | 2.398×1012 | 76000 | β+ |
322 | 230Th | 90 | 140 | 7.937136 | 2.379×1012 | 75400 | α, SF | DP
323 | 137La | 57 | 80 | 8.707101 | 1.893×1012 | 60000 | β+ |
324 | 202Pb | 82 | 120 | 8.199714 | 1.657×1012 | 52500 | β+, α |
325 | 231Pa | 91 | 140 | 7.926627 | 1.034×1012 | 32770 | α, SF | DP
326 | 239Pu | 94 | 145 | 7.868022 | 7.609×1011 | 24110 | α, SF | IM, DP
327 | 94Nb | 41 | 53 | 8.990099 | 6.406×1011 | 20300 | β− | CG

### Radionuclides with half-lives of 10 years to 10,000 years[edit]

Ordered by half-life.

no | nuclide | Z | N | energy | half-life (seconds) | half-life (years) | decay mode | notes

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328 | 250Cm | 96 | 154 | 7.779371 | 2.619×1011 | 8300 | SF, α, β− |
329 | 245Cm | 96 | 149 | 7.822329 | 2.60×1011 | 8250 | α, SF |
330 | 243Am | 95 | 148 | 7.836035 | 2.326×1011 | 7371 | α, SF |
331 | 229Th | 90 | 139 | 7.942127 | 2.316×1011 | 7339 | α | DP
332 | 240Pu | 94 | 146 | 7.862465 | 2.070×1011 | 6560 | α, SF | DP
333 | 14C | 6 | 8 | 7.855620 | 1.799×1011 | 5700 | β− | CG, IM
334 | 93Mo | 42 | 51 | 9.004693 | 1.53×1011 | 4839[26] | β+ |
335 | 246Cm | 96 | 150 | 7.816781 | 1.502×1011 | 4760 | α, SF |
336 | 163Ho | 67 | 96 | 8.478591 | 1.442×1011 | 4570 | β+ |
337 | 226Ra | 88 | 138 | 7.966597 | 5.049×1010 | 1600 | α | DP
338 | 247Bk | 97 | 150 | 7.806182 | 4.355×1010 | 1380 | α |
339 | 166mHo | 67 | 99 | 8.451273 | 3.787×1010 | 1200 | β− |
340 | 251Cf | 98 | 153 | 7.775969 | 2.834×1010 | 898 | α, SF |
341 | 91Nb | 41 | 50 | 9.023327 | 2.146×1010 | 680 | β+ |
342 | 194Hg | 80 | 114 | 8.237271 | 1.401×1010 | 444 | β+ |
343 | 108mAg | 47 | 61 | 8.881439 | 1.382×1010 | 437.9 | β+, IT |
344 | 241Am | 95 | 146 | 7.851676 | 1.364×1010 | 432.2 | α, SF | IM
345 | 249Cf | 98 | 151 | 7.791305 | 1.108×1010 | 351.1 | α, SF |
346 | 248Bk | 97 | 151 | 7.796811 | > 9.47×109 | >300 | α |
347 | 39Ar | 18 | 21 | 8.923686 | 8.489×109 | 269 | β− | CG
348 | 192mIr | 77 | 115 | 8.251875 | 7.605×109 | 241 | IT |
349 | 158Tb | 65 | 93 | 8.511055 | 5.680×109 | 180 | β+, β− |
350 | 242mAm | 95 | 147 | 7.841913 | 4.450×109 | 141 | IT, α, SF |
351 | 32Si | 14 | 18 | 8.823856 | 4.166×109 | 132 | β− | CG
352 | 209Po | 84 | 125 | 8.149633 | 3.951×109 | 125.2[27] | α, β+ |
353 | 63Ni | 28 | 35 | 9.111210 | 3.159×109 | 101 | β− | IM
354 | 151Sm | 62 | 89 | 8.565251 | 2.840×109 | 90.0 | β− | FP
355 | 238Pu | 94 | 144 | 7.877358 | 2.768×109 | 87.7 | α, SF | IM, DP
356 | 148Gd | 64 | 84 | 8.586706 | 2.74×109 | 86.9[28] | α |
357 | 157Tb | 65 | 92 | 8.522096 | 2.241×109 | 71.0 | β+ |
358 | 232U | 92 | 140 | 7.922143 | 2.174×109 | 68.9 | α, SF |
359 | 44Ti | 22 | 22 | 8.924702 | 1.893×109 | 59.1 | β+ |
360 | 193Pt | 78 | 115 | 8.249965 | 1.578×109 | 50.0 | β+ |
361 | 121mSn | 50 | 71 | 8.808499 | 1.385×109 | 43.89 | IT, β− |
362 | 150Eu | 63 | 87 | 8.569974 | 1.164×109 | 36.89 | β+ |
363 | 42Ar | 18 | 24 | 8.890923 | 1.038×109 | 32.9 | β− |
364 | 207Bi | 83 | 124 | 8.168209 | 1.038×109 | 31.6 | β+ |
365 | 178m2Hf | 72 | 106 |  | 9.776×108 | 31 | IT |
366 | 137Cs | 55 | 82 | 8.703047 | 9.477×108 | 30.1 | β− | FP, IM
367 | 243Cm | 96 | 147 | 7.836004 | 9.183×108 | 29.1 | α, β+, SF |
368 | 90Sr | 38 | 52 | 9.026239 | 9.120×108 | 28.9 | β− | FP, IM
369 | 210Pb | 82 | 128 | 8.141462 | 7.006×108 | 22.2 | β−, α | DP, IM
370 | 227Ac | 89 | 138 | 7.957447 | 6.871×108 | 21.77 | β−, α | DP
371 | 244Cm | 96 | 148 | 7.831763 | 5.712×108 | 18.1 | α, SF |
372 | 145Pm | 61 | 84 | 8.631838 | 5.586×108 | 17.7 | β+, α |
373 | 93mNb | 41 | 52 |  | 5.084×108 | 16.1 | IT |
374 | 241Pu | 94 | 147 | 7.851590 | 4.510×108 | 14.3 | β−, α, SF |
375 | 113mCd | 48 | 65 |  | 4.380×108 | 13.9 | β−, IT | FP
376 | 152Eu | 63 | 89 | 8.550897 | 4.262×108 | 13.51 | β+, β− |
377 | 250Cf | 98 | 152 | 7.786640 | 4.128×108 | 13.08 | α, SF |
378 | 3H | 1 | 2 | 3.087994 | 3.888×108 | 12.32 | β− | CG, IM
379 | 85Kr | 36 | 49 | 9.029919 | 3.384×108 | 10.72 | β− | FP, IM
380 | 133Ba | 56 | 77 | 8.729624 | 3.319×108 | 10.52 | β+ |

### Radionuclides with half-lives of 1 day to 10 years[edit]

Ordered by half-life.

no | nuclide | Z | N | energy | half-life (seconds) | half-life | decay mode | notes

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381 | 154Eu | 63 | 91 | 8.537200 | 2.711×108 | 8.60 y | β−, β+ |
382 | 194Os | 76 | 118 | 8.238508 | 1.893×108 | 6.0 y | β− |
383 | 228Ra | 88 | 140 | 7.944390 | 1.815×108 | 5.75 y | β− | DP
384 | 146Pm | 61 | 85 | 8.615574 | 1.745×108 | 5.53 y | β+, β− |
385 | 60Co | 27 | 33 | 9.098811 | 1.663×108 | 5.27 y | β− | IM
386 | 155Eu | 63 | 92 | 8.534711 | 1.500×108 | 4.75 y | β− | FP
387 | 204Tl | 81 | 123 | 8.190671 | 1.193×108 | 3.78 y | β−, β+ | IM
388 | 174Lu | 71 | 103 | 8.390726 | 1.045×108 | 3.31 y | β+ |
389 | 101Rh | 45 | 56 | 8.936753 | 1.041×108 | 3.3 y | β+ |
390 | 102mRh | 45 | 57 | 8.920680 | 9.152×107 | 2.9 y | β+, IT |
391 | 208Po | 84 | 124 | 8.155315 | 9.145×107 | 2.898 y | α, β+ |
392 | 236Pu | 94 | 142 | 7.889536 | 9.019×107 | 2.858 y | α, SF |
393 | 125Sb | 51 | 74 | 8.777367 | 8.705×107 | 2.759 y | β− | FP
394 | 55Fe | 26 | 29 | 9.116407 | 8.637×107 | 2.737 y | β+ |
395 | 252Cf | 98 | 154 | 7.769605 | 8.347×107 | 2.645 y | α, SF | IM
396 | 147Pm | 61 | 86 | 8.609068 | 8.279×107 | 2.624 y | β− | FP, DP
397 | 22Na | 11 | 11 | 8.306891 | 8.213×107 | 2.603 y | β+ | CG
398 | 134Cs | 55 | 79 | 8.719768 | 6.517×107 | 2.065 y | β−, β+ | FP
399 | 171Tm | 69 | 102 | 8.417620 | 6.059×107 | 1.92 y | β− |
400 | 228Th | 90 | 138 | 7.953906 | 6.033×107 | 1.912 y | α | DP
401 | 172Hf | 72 | 100 | 8.399252 | 5.901×107 | 1.87 y | β+ |
402 | 179Ta | 73 | 106 | 8.352703 | 5.743×107 | 1.82 y | β+ |
403 | 173Lu | 71 | 102 | 8.400147 | 4.323×107 | 1.37 y | β+ |
404 | 252Es | 99 | 153 | 7.764621 | 4.075×107 | 1.291 y | α, β+, β− |
405 | 109Cd | 48 | 61 | 8.883327 | 3.986×107 | 1.263 y | β+ |
406 | 235Np | 93 | 142 | 7.896669 | 3.422×107 | 1.084 y | β+, α |
407 | 106Ru | 44 | 62 | 8.885686 | 3.228×107 | 1.023 y | β− | FP
408 | 144Pm | 61 | 83 | 8.636751 | 3.136×107 | 363 d | β+ |
409 | 145Sm | 62 | 83 | 8.627590 | 2.938×107 | 340 d | β+ |
410 | 248Cf | 98 | 150 | 7.800198 | 2.881×107 | 333.4 d | α, SF |
411 | 249Bk | 97 | 152 | 7.790805 | 2.851×107 | 330 d | β−, α, SF |
412 | 49V | 23 | 26 | 9.050040 | 2.843×107 | 329.1 d | β+ |
413 | 54Mn | 25 | 29 | 9.100131 | 2.697×107 | 312.2 d | β+, β− | IM
414 | 119m1Sn | 50 | 69 |  | 2.534×107 | 293.1 d | IT |
415 | 144Ce | 58 | 86 | 8.629918 | 2.462×107 | 285 d | β− | FP
416 | 254Es | 99 | 155 | 7.748524 | 2.382×107 | 275.7 d | α, β−, SF, β+ |
417 | 57Co | 27 | 30 | 9.112454 | 2.348×107 | 271.8 d | β+ | IM
418 | 68Ge | 32 | 36 | 9.056327 | 2.341×107 | 271 d | β+ | IM
419 | 143Pm | 61 | 82 | 8.651509 | 2.290×107 | 265 d | β+ |
420 | 110mAg | 47 | 63 | 8.865355 | 2.158×107 | 249.8 d | β−, IT |
421 | 65Zn | 30 | 35 | 9.085352 | 2.105×107 | 243.6 d | β+ | IM
422 | 153Gd | 64 | 89 | 8.547731 | 2.077×107 | 240.4 d | β+ | IM
423 | 102Rh | 45 | 57 |  | 1.788×107 | 207 d | β+, β− |
424 | 195Au | 79 | 116 | 8.238353 | 1.608×107 | 186.1 d | β+ |
425 | 194mIr | 77 | 117 | 8.238025 | 1.477×107 | 170.9 d | β− |
426 | 184mRe | 75 | 109 | 8.310670 | 1.460×107 | 169 d | IT, β+ |
427 | 242Cm | 96 | 146 | 7.844860 | 1.407×107 | 162.8 d | α, SF |
428 | 45Ca | 20 | 25 | 8.978261 | 1.405×107 | 162.6 d | β− |
429 | 177mLu | 71 | 106 | 8.361829 | 1.386×107 | 160.4 d | β−, IT |
430 | 121mTe | 52 | 69 | 8.800749 | 1.331×107 | 154.1 d | IT, β+ |
431 | 159Dy | 66 | 93 | 8.506378 | 1.248×107 | 144.4 d | β+ |
432 | 174m1Lu | 71 | 103 |  | 1.227×107 | 142 d | IT, EC |
433 | 210Po | 84 | 126 | 8.147295 | 1.196×107 | 138.4 d | α | DP
434 | 139Ce | 58 | 81 | 8.696881 | 1.189×107 | 137.6 d | β+ |
435 | 123Sn | 50 | 73 | 8.785311 | 1.116×107 | 129.2 d | β− |
436 | 170Tm | 69 | 101 | 8.423096 | 1.111×107 | 128.6 d | β−, β+ |
437 | 151Gd | 64 | 87 | 8.562685 | 1.071×107 | 124 d | β+, α |
438 | 181W | 74 | 107 | 8.337924 | 1.047×107 | 121.2 d | β+ |
439 | 75Se | 34 | 41 | 9.033581 | 1.035×107 | 119.8 d | β+ | IM
440 | 123mTe | 52 | 71 |  | 1.03×107 | 119.2 d | IT |
441 | 113Sn | 50 | 63 | 8.853035 | 9.944×106 | 115.1 d | β+ |
442 | 182Ta | 73 | 109 | 8.326456 | 9.887×106 | 114.4 d | β− |
443 | 127mTe | 52 | 75 | 8.765759 | 9.418×106 | 109 d | IT |
444 | 88Y | 39 | 49 | 9.029272 | 9.212×106 | 106.6 d | β+ |
445 | 257Fm | 100 | 157 | 7.726619 | 8.683×106 | 100.5 d | α, SF |
446 | 185Os | 76 | 109 | 8.302730 | 8.087×106 | 93.6 d | β+ |
447 | 168Tm | 69 | 99 | 8.436316 | 8.044×106 | 93.1 d | β+, β− |
448 | 149Eu | 63 | 86 | 8.584395 | 8.044×106 | 93.1 d | β+ |
449 | 97mTc | 43 | 54 |  | 7.862×106 | 91 d | IT |
450 | 35S | 16 | 19 | 8.895510 | 7.561×106 | 87.51 d | β− | CG
451 | 83Rb | 37 | 46 | 9.024038 | 7.448×106 | 86.2 d | β+ |
452 | 46Sc | 21 | 25 | 8.979091 | 7.239×106 | 83.78 d | β− |
453 | 88Zr | 40 | 48 | 9.021589 | 7.206×106 | 83.4 d | β+ |
454 | 73As | 33 | 40 | 9.043341 | 6.938×106 | 80.3 d | β+ |
455 | 56Co | 27 | 29 | 9.072031 | 6.673×106 | 77.23 d | β+ |
456 | 185W | 74 | 111 | 8.305866 | 6.489×106 | 75.1 d | β− |
457 | 192Ir | 77 | 115 |  | 6.379×106 | 73.827 d | β−,ε | IM
458 | 160Tb | 65 | 95 | 8.495346 | 6.247×106 | 72.3 d | β− |
459 | 58Co | 27 | 31 | 9.103153 | 6.122×106 | 70.86 d | β+ |
460 | 183Re | 75 | 108 | 8.321661 | 6.048×106 | 70 d | β+ |
461 | 175Hf | 72 | 103 | 8.382665 | 6.048×106 | 70 d | β+ |
462 | 188W | 74 | 114 | 8.277003 | 6.029×106 | 69.78 d | β− |
463 | 85Sr | 38 | 47 | 9.025480 | 5.602×106 | 64.84 d | β+ |
464 | 95Zr | 40 | 55 | 8.972989 | 5.532×106 | 64.03 d | β− | FP
465 | 95mTc | 43 | 52 | 8.976359 | 5.270×106 | 61 d | β+, IT |
466 | 91mNb | 41 | 50 |  | 5.258×106 | 60.86 d | IT,ε |
467 | 254Cf | 98 | 156 | 7.751087 | 5.227×106 | 60.5 d | SF, α |
468 | 124Sb | 51 | 73 | 8.777943 | 5.194×106 | 60.12 d | β− |
469 | 125I | 53 | 72 | 8.782019 | 5.132×106 | 59.4 d | β+ | IM
470 | 91Y | 39 | 52 | 9.020174 | 5.055×106 | 58.51 d | β− | FP
471 | 125mTe | 52 | 73 |  | 4.959×106 | 57.4 d | IT |
472 | 148Eu | 63 | 85 | 8.586882 | 4.709×106 | 54.5 d | β+, α |
473 | 7Be | 4 | 3 | 5.818470 | 4.598×106 | 53.22 d | β+ | CG
474 | 258Md | 101 | 157 | 7.715948 | 4.450×106 | 51.5 d | α, SF |
475 | 89Sr | 38 | 51 | 9.039969 | 4.369×106 | 50.57 d | β− | FP, IM
476 | 114mIn | 49 | 65 | 8.846608 | 4.278×106 | 49.51 d | IT, β+ |
477 | 146Gd | 64 | 82 | 8.592512 | 4.171×106 | 48.28 d | β+ |
478 | 203Hg | 80 | 123 | 8.195806 | 4.026×106 | 46.6 d | β− |
479 | 237Pu | 94 | 143 | 7.881060 | 3.905×106 | 45.2 d | β+, α |
480 | 115mCd | 48 | 67 | 8.835754 | 3.850×106 | 44.56 d | β− |
481 | 59Fe | 26 | 33 | 9.099516 | 3.844×106 | 44.49 d | β− | IM
482 | 181Hf | 72 | 109 | 8.333272 | 3.662×106 | 42.38 d | β− |
483 | 148mPm | 61 | 87 | 8.589800 | 3.567×106 | 41.28 d | β−, IT |
484 | 105Ag | 47 | 58 | 8.900547 | 3.567×106 | 41.28 d | β+ |
485 | 255Es | 99 | 156 | 7.741567 | 3.439×106 | 39.8 d | β−, α, SF |
486 | 103Ru | 44 | 59 | 8.918500 | 3.392×106 | 39.26 d | β− | FP
487 | 127Xe | 54 | 73 | 8.766768 | 3.145×106 | 36.4 d | β+ |
488 | 184Re | 75 | 109 |  | 3.059×106 | 35.4 d | β+ |
489 | 95Nb | 41 | 54 | 8.984821 | 3.023×106 | 34.99 d | β− | FP
490 | 37Ar | 18 | 19 | 8.907752 | 3.020×106 | 34.95 d | β+ | CG
491 | 129mTe | 52 | 77 | 8.744953 | 2.903×106 | 33.6 d | IT, β− |
492 | 84Rb | 37 | 47 | 9.020732 | 2.860×106 | 33.1 d | β+, β− |
493 | 241Cm | 96 | 145 | 7.848492 | 2.834×106 | 32.8 d | β+, α |
494 | 141Ce | 58 | 83 | 8.677286 | 2.809×106 | 32.51 d | β− | FP
495 | 169Yb | 70 | 99 | 8.428546 | 2.767×106 | 32.03 d | β+ | IM
496 | 260Md | 101 | 159 | 7.699789 | 2.748×106 | 31.81 d | SF, α, β+, β− |
497 | 51Cr | 24 | 27 | 9.080127 | 2.393×106 | 27.7 d | β+ | IM
498 | 240Cm | 96 | 144 | 7.855805 | 2.333×106 | 27 d | α, β+, SF |
499 | 233Pa | 91 | 142 | 7.910426 | 2.331×106 | 26.98 d | β− | DP
500 | 82Sr | 38 | 44 | 8.998254 | 2.208×106 | 25.56 d | β+ | IM
501 | 33P | 15 | 18 | 8.869434 | 2.189×106 | 25.34 d | β− |
502 | 179m2Hf | 72 | 107 |  | 2.164×106 | 25.05 d | IT |
503 | 234Th | 90 | 144 | 7.897763 | 2.082×106 | 24.1 d | β− | DP
504 | 147Eu | 63 | 84 | 8.598879 | 2.082×106 | 24.1 d | β+, α |
505 | 178W | 74 | 104 | 8.354563 | 1.866×106 | 21.6 d | β+ |
506 | 230U | 92 | 138 | 7.933871 | 1.797×106 | 20.8 d | α, SF |
507 | 253Es | 99 | 154 | 7.759019 | 1.769×106 | 20.5 d | α, SF |
508 | 121Te | 52 | 69 |  | 1.656×106 | 19.2 d | ε |
509 | 227Th | 90 | 137 | 7.957644 | 1.614×106 | 18.7 d | α | DP
510 | 86Rb | 37 | 49 | 9.033502 | 1.611×106 | 18.6 d | β−, β+ |
511 | 253Cf | 98 | 155 | 7.757885 | 1.539×106 | 17.8 d | β−, α |
512 | 74As | 33 | 41 | 9.028895 | 1.535×106 | 17.8 d | β+, β− |
513 | 230Pa | 91 | 139 | 7.931436 | 1.503×106 | 17.4 d | β+, β−, α |
514 | 103Pd | 46 | 57 | 8.920638 | 1.468×106 | 17.0 d | β+ | IM
515 | 99Rh | 45 | 54 | 8.935711 | 1.391×106 | 16.1 d | β+ |
516 | 48V | 23 | 25 | 8.997890 | 1.380×106 | 15.97 d | β+ |
517 | 191Os | 76 | 115 | 8.261870 | 1.331×106 | 15.41 d | β− |
518 | 205Bi | 83 | 122 | 8.174069 | 1.323×106 | 15.31 d | β+ |
519 | 156Eu | 63 | 93 | 8.520642 | 1.312×106 | 15.19 d | β− |
520 | 225Ra | 88 | 137 | 7.973576 | 1.287×106 | 14.9 d | β− | DP
521 | 32P | 15 | 17 | 8.830865 | 1.232×106 | 14.268 d | β− | CG, IM
522 | 117mSn | 50 | 67 |  | 1.21×106 | 14 d | IT |
523 | 143Pr | 59 | 84 | 8.652258 | 1.172×106 | 13.56 d | β− |
524 | 189Ir | 77 | 112 | 8.274783 | 1.140×106 | 13.19 d | β+ |
525 | 136Cs | 55 | 81 | 8.706171 | 1.127×106 | 13.04 d | β− |
526 | 126I | 53 | 73 | 8.769026 | 1.117×106 | 12.93 d | β+, β− |
527 | 140Ba | 56 | 84 | 8.666120 | 1.102×106 | 12.75 d | β− | FP
528 | 126Sb | 51 | 75 | 8.757042 | 1.067×106 | 12.35 d | β− |
529 | 202Tl | 81 | 121 | 8.199956 | 1.057×106 | 12.23 d | β+ |
530 | 131mXe | 54 | 77 |  | 1.023×106 | 11.84 d | IT |
531 | 190Ir | 77 | 113 | 8.264755 | 1.018×106 | 11.78 d | β+ |
532 | 131Ba | 56 | 75 | 8.733037 | 9.936×105 | 11.5 d | β+ |
533 | 223Ra | 88 | 135 | 7.994042 | 9.876×105 | 11.43 d | α | DP, IM
534 | 71Ge | 32 | 39 | 9.055943 | 9.876×105 | 11.43 d | β+ |
535 | 147Nd | 60 | 87 | 8.602973 | 9.487×105 | 10.98 d | β− |
536 | 246Pu | 94 | 152 | 7.805494 | 9.366×105 | 10.84 d | β− |
537 | 193mIr | 77 | 116 |  | 9.098×105 | 10.53 d | IT |
538 | 188Pt | 78 | 110 | 8.272514 | 8.813×105 | 10.2 d | β+, α |
539 | 92mNb | 41 | 51 |  | 8.770×105 | 10.15 d | β+, α |
540 | 225Ac | 89 | 136 | 7.975159 | 8.571×105 | 9.92 d | α | DP
541 | 131Cs | 55 | 76 | 8.743541 | 8.371×105 | 9.69 d | β+ | IM
542 | 125Sn | 50 | 75 | 8.758515 | 8.329×105 | 9.64 d | β− |
543 | 169Er | 68 | 101 | 8.431852 | 8.115×105 | 9.39 d | β− | IM
544 | 149Gd | 64 | 85 | 8.575576 | 8.018×105 | 9.28 d | β+, α |
545 | 167Tm | 69 | 98 | 8.445866 | 7.992×105 | 9.25 d | β+ |
546 | 129mXe | 54 | 75 |  | 7.672×105 | 8.88 d | IT |
547 | 206Po | 84 | 122 | 8.159590 | 7.603×105 | 8.80 d | β+, α |
548 | 72Se | 34 | 38 | 9.014300 | 7.258×105 | 8.40 d | β+ |
549 | 106mAg | 47 | 59 | 8.890639 | 7.154×105 | 8.28 d | β+ |
550 | 171Lu | 71 | 100 | 8.409532 | 7.119×105 | 8.24 d | β+ |
551 | 131I | 53 | 78 | 8.738842 | 6.930×105 | 8.02 d | β− | FP, IM
552 | 257Es | 99 | 158 | 7.723468 | 6.653×105 | 7.7 d | β−, SF |
553 | 111Ag | 47 | 64 | 8.866111 | 6.437×105 | 7.45 d | β− |
554 | 161Tb | 65 | 96 | 8.490383 | 5.967×105 | 6.91 d | β− |
555 | 237U | 92 | 145 | 7.879800 | 5.832×105 | 6.75 d | β− | DP
556 | 172Lu | 71 | 101 | 8.401217 | 5.789×105 | 6.70 d | β+ | IM
557 | 177Lu | 71 | 106 |  | 5.743×105 | 6.65 d | β− |
558 | 132Cs | 55 | 77 | 8.731599 | 5.599×105 | 6.48 d | β+, β− |
559 | 206Bi | 83 | 123 | 8.168551 | 5.394×105 | 6.24 d | β+ |
560 | 196Au | 79 | 117 | 8.230205 | 5.328×105 | 5.17 d | β+, β− |
561 | 56Ni | 28 | 28 | 9.033899 | 5.249×105 | 6.08 d | β+ |
562 | 118Te | 52 | 66 | 8.814726 | 5.184×105 | 6 d | β+ |
563 | 145Eu | 63 | 82 | 8.609245 | 5.124×105 | 5.93 d | β+ |
564 | 120mSb | 51 | 69 | 8.808194 | 4.977×105 | 5.76 d | β+ |
565 | 52Mn | 25 | 27 | 9.046431 | 4.831×105 | 5.59 d | β+ |
566 | 148Pm | 61 | 87 |  | 4.638×105 | 5.37 d | β− |
567 | 156Tb | 65 | 91 | 8.520667 | 4.622×105 | 5.35 d | β+ |
568 | 155Tb | 65 | 90 | 8.531031 | 4.596×105 | 5.32 d | β+ |
569 | 133Xe | 54 | 79 | 8.730302 | 4.530×105 | 5.24 d | β− | IM
570 | 183Ta | 73 | 110 | 8.318847 | 4.406×105 | 5.10 d | β− |
571 | 210Bi | 83 | 127 |  | 4.330×105 | 5.01 d | β−, α | DP
572 | 245Bk | 97 | 148 | 7.819020 | 4.268×105 | 4.94 d | β+, α |
573 | 119mTe | 52 | 67 | 8.801773 | 4.061×105 | 4.7 d | β+, IT |
574 | 146Eu | 63 | 83 | 8.599560 | 3.983×105 | 4.61 d | β+ |
575 | 47Ca | 20 | 27 | 8.972181 | 3.919×105 | 4.54 d | β− |
576 | 234Np | 93 | 141 | 7.900571 | 3.802×105 | 4.4 d | β+ |
577 | 101mRh | 45 | 56 |  | 3.74×105 | 4.34 d | ε, IT |
578 | 193mPt | 78 | 115 |  | 3.74×105 | 4.33 d | IT |
579 | 96Tc | 43 | 53 | 8.965255 | 3.698×105 | 4.28 d | β+ |
580 | 231U | 92 | 139 | 7.924977 | 3.629×105 | 4.2 d | β+, α |
581 | 175Yb | 70 | 105 | 8.383902 | 3.616×105 | 4.19 d | β− |
582 | 124I | 53 | 71 | 8.775884 | 3.608×105 | 4.18 d | β+ | IM
583 | 195mPt | 78 | 117 |  | 3.46×105 | 4.01 d | IT |
584 | 127Sb | 51 | 76 | 8.754005 | 3.326×105 | 3.85 d | β− |
585 | 222Rn | 86 | 136 | 7.997573 | 3.304×105 | 3.82 d | α | DP
586 | 186Re | 75 | 111 |  | 3.21×105 | 3.72 d | β−,e | IM
587 | 224Ra | 88 | 136 | 7.987277 | 3.138×105 | 3.63 d | α | DP
588 | 100Pd | 46 | 54 | 8.923587 | 3.136×105 | 3.63 d | β+ |
589 | 95mNb | 41 | 54 |  | 3.11×105 | 3.61 d | IT, β− |
590 | 166Dy | 66 | 100 | 8.448376 | 2.938×105 | 3.4 d | β− |
591 | 140Nd | 60 | 80 | 8.673113 | 2.912×105 | 3.37 d | β+ |
592 | 47Sc | 21 | 26 | 9.014564 | 2.894×105 | 3.35 d | β− |
593 | 87Y | 39 | 48 | 9.025565 | 2.873×105 | 3.33 d | β+ |
594 | 89Zr | 40 | 49 | 9.024912 | 2.823×105 | 3.27 d | β+ |
595 | 67Ga | 31 | 36 | 9.069532 | 2.819×105 | 3.26 d | β+ | IM
596 | 132Te | 52 | 80 | 8.716646 | 2.768×105 | 3.2 d | β− | FP
597 | 134Ce | 58 | 76 | 8.704432 | 2.730×105 | 3.16 d | β+ |
598 | 199Au | 79 | 120 | 8.217534 | 2.712×105 | 3.14 d | β− |
599 | 201Tl | 81 | 120 | 8.206561 | 2.625×105 | 3.04 d | β+ | IM
600 | 253Fm | 100 | 153 | 7.757691 | 2.592×105 | 3\. d | β+, α |
601 | 191Pt | 78 | 113 | 8.258228 | 2.473×105 | 2.86 d | β+ |
602 | 111In | 49 | 62 | 8.867688 | 2.423×105 | 2.8 d | β+ | IM
603 | 97Ru | 44 | 53 | 8.959080 | 2.411×105 | 2.79 d | β+ |
604 | 99Mo | 42 | 57 | 8.939669 | 2.375×105 | 2.75 d | β− | FP, IM
605 | 122Sb | 51 | 71 | 8.795346 | 2.353×105 | 2.72 d | β−, β+ |
606 | 71As | 33 | 38 | 9.027581 | 2.350×105 | 2.72 d | β+ |
607 | 198Au | 79 | 119 | 8.220732 | 2.329×105 | 2.7 d | β− | IM
608 | 197Hg | 80 | 117 | 8.226358 | 2.309×105 | 2.67 d | β+ |
609 | 90Y | 39 | 51 | 9.032294 | 2.306×105 | 2.67 d | β− | IM
610 | 182Re | 75 | 107 | 8.321053 | 2.304×105 | 2.67 d | β+ |
611 | 172Tm | 69 | 103 | 8.404932 | 2.290×105 | 2.65 d | β− |
612 | 67Cu | 29 | 38 | 9.076086 | 2.226×105 | 2.58 d | β− | IM
613 | 44mSc | 21 | 23 | 8.924627 | 2.110×105 | 2.44 d | IT, β+ |
614 | 128Ba | 56 | 72 | 8.738523 | 2.100×105 | 2.43 d | β+ |
615 | 77Br | 35 | 42 | 9.022431 | 2.053×105 | 2.38 d | β+ |
616 | 166Yb | 70 | 96 | 8.442340 | 2.041×105 | 2.36 d | β+ |
617 | 177Ta | 73 | 104 | 8.363553 | 2.036×105 | 2.36 d | β+ |
618 | 239Np | 93 | 146 | 7.864999 | 2.036×105 | 2.36 d | β− | DP
619 | 153Tb | 65 | 88 | 8.537471 | 2.022×105 | 2.34 d | β+ |
620 | 66Ni | 28 | 38 | 9.071423 | 1.966×105 | 2.28 d | β− |
621 | 247Pu | 94 | 153 | 7.791975 | 1.961×105 | 2.27 d | β− |
622 | 198m2Au | 79 | 119 |  | 1.96×105 | 2.27 d | IT |
623 | 115Cd | 48 | 67 |  | 1.92×105 | 2.23 d | β− |
624 | 149Pm | 61 | 88 | 8.581871 | 1.911×105 | 2.21 d | β− |
625 | 133mXe | 54 | 79 |  | 1.89×105 | 2.20 d | IT |
626 | 203Pb | 82 | 121 | 8.193431 | 1.869×105 | 2.16 d | β+ |
627 | 238Np | 93 | 145 | 7.871931 | 1.829×105 | 2.12 d | β− |
628 | 240Am | 95 | 145 | 7.856694 | 1.829×105 | 2.12 d | β+, α |
629 | 172Er | 68 | 104 | 8.399752 | 1.775×105 | 2.05 d | β− |
630 | 170Lu | 71 | 99 | 8.408445 | 1.738×105 | 2.01 d | β+ |
631 | 72Zn | 30 | 42 | 9.017591 | 1.674×105 | 1.94 d | β− |
632 | 153Sm | 62 | 91 | 8.545614 | 1.666×105 | 1.93 d | β− | IM
633 | 202Pt | 78 | 124 | 8.183209 | 1.584×105 | 1.83 d | β− |
634 | 48Sc | 21 | 27 | 8.998327 | 1.572×105 | 1.82 d | β− |
635 | 246Bk | 97 | 149 | 7.811287 | 1.555×105 | 1.8 d | β+, α |
636 | 195mHg | 80 | 115 | 8.229399 | 1.498×105 | 1.73 d | IT, β+ |
637 | 188Ir | 77 | 111 | 8.275200 | 1.494×105 | 1.73 d | β+ |
638 | 140La | 57 | 83 | 8.673620 | 1.450×105 | 1.68 d | β− |
639 | 254mEs | 99 | 155 |  | 1.41×105 | 1.64 d | β−, IT, α, EC, SF |
640 | 69Ge | 32 | 37 | 9.043800 | 1.406×105 | 1.63 d | β+ |
641 | 133mBa | 56 | 77 |  | 1.4×105 | 1.62 d | IT,e |
642 | 77As | 33 | 44 | 9.031283 | 1.398×105 | 1.62 d | β− |
643 | 119Sb | 51 | 68 | 8.823235 | 1.375×105 | 1.59 d | β+ |
644 | 147Gd | 64 | 83 | 8.584001 | 1.370×105 | 1.59 d | β+ |
645 | 194Au | 79 | 115 | 8.237626 | 1.369×105 | 1.58 d | β+ |
646 | 229Pa | 91 | 138 | 7.940769 | 1.296×105 | 1.5 d | β+, α |
647 | 246Cf | 98 | 148 | 7.810792 | 1.285×105 | 1.49 d | α, β+, SF |
648 | 57Ni | 28 | 29 | 9.055222 | 1.282×105 | 1.48 d | β+ |
649 | 105Rh | 45 | 60 | 8.907956 | 1.273×105 | 1.47 d | β− | FP
650 | 82Br | 35 | 47 | 9.016407 | 1.270×105 | 1.47 d | β− |
651 | 79Kr | 36 | 43 | 9.013644 | 1.261×105 | 1.46 d | β+ |
652 | 137mCe | 58 | 79 | 8.696327 | 1.238×105 | 1.43 d | IT, β+ |
653 | 169Lu | 71 | 98 | 8.414978 | 1.226×105 | 1.42 d | β+ |
654 | 143Ce | 58 | 85 | 8.642041 | 1.189×105 | 1.38 d | β− |
655 | 251Es | 99 | 152 | 7.774467 | 1.188×105 | 1.38 d | β+, α |
656 | 83Sr | 38 | 45 | 8.996568 | 1.167×105 | 1.35 d | β+ |
657 | 129Cs | 55 | 74 | 8.749622 | 1.154×105 | 1.34 d | β+ |
658 | 268Db | 105 | 163 | 7.635133 | 1.152×105 | 1.33 d | SF, EC, α[29] |
659 | 232Pa | 91 | 141 | 7.916379 | 1.132×105 | 1.31 d | β−, β+ |
660 | 193Os | 76 | 117 | 8.244348 | 1.084×105 | 1.25 d | β− |
661 | 165Tm | 69 | 96 | 8.452758 | 1.082×105 | 1.25 d | β+ |
662 | 131mTe | 52 | 79 | 8.720392 | 1.080×105 | 1.25 d | β−, IT |
663 | 226Ac | 89 | 137 | 7.963761 | 1.057×105 | 1.22 d | β−, β+, α |
664 | 160Er | 68 | 92 | 8.484190 | 1.029×105 | 1.19 d | β+ |
665 | 151Pm | 61 | 90 | 8.557387 | 1.022×105 | 1.18 d | β− |
666 | 135mBa | 56 | 79 |  | 1.01×105 | 1.17 d | IT |
667 | 121Sn | 50 | 71 |  | 9.73×104 | 1.13 d | β− |
668 | 166Ho | 67 | 99 |  | 9.65×104 | 1.12 d | β− | IM
669 | 76As | 33 | 43 | 9.022505 | 9.454×104 | 1.09 d | β− |
670 | 200Tl | 81 | 119 | 8.206567 | 9.396×104 | 1.09 d | β+ |
671 | 72As | 33 | 39 | 9.018966 | 9.360×104 | 1.08 d | β+ |
672 | 231Th | 90 | 141 | 7.924932 | 9.187×104 | 1.06 d | β−, α | DP
673 | 252Fm | 100 | 152 | 7.766498 | 9.140×104 | 1.06 d | α, SF |
674 | 156mTb | 65 | 91 |  | 8.78×104 | 1.02 d | IT |
675 | 189Re | 75 | 114 | 8.272269 | 8.748×104 | 1.01 d | β− |

### Radionuclides with half-lives of 1 hour to 1 day[edit]

Ordered by half-life.

no | nuclide | Z | N | energy | half-life (seconds) | half-life (hours) | decay mode | notes

|
|
|
|
|
|
|
|

676 | 197mHg | 80 | 117 |  | 8.568×104 | 23.8 | IT |
677 | 187W | 74 | 113 | 8.284722 | 8.539×104 | 23.7 | β− |
678 | 248mBk | 97 | 151 |  | 8.532×104 | 23.7 | β−, EC (30) |
679 | 173Hf | 72 | 101 | 8.391617 | 8.496×104 | 23.6 | β+ |
680 | 96Nb | 41 | 55 | 8.963036 | 8.406×104 | 23.4 | β− |
681 | 154m2Tb | 65 | 89 | 8.526912 | 8.172×104 | 22.7 | β+, IT (1.8) |
682 | 236mNp | 93 | 143 |  | 8.1×104 | 22.5 | EC, β− (50) |
683 | 43K | 19 | 24 | 8.922327 | 8.028×104 | 22.3 | β− |
684 | 182Os | 76 | 106 | 8.316432 | 7.956×104 | 22.1 | β+ |
685 | 228Pa | 91 | 137 | 7.944468 | 7.920×104 | 22.0 | β+, α (2) |
686 | 48Cr | 24 | 24 | 8.963390 | 7.762×104 | 21.6 | β+ |
687 | 154Tb | 65 | 89 |  | 7.74×104 | 21.5 | β+, β− (<0.1) |
688 | 200Pb | 82 | 118 | 8.202542 | 7.740×104 | 21.5 | β+ |
689 | 112Pd | 46 | 66 | 8.842185 | 7.571×104 | 21.0 | β− |
690 | 28Mg | 12 | 16 | 8.607706 | 7.529×104 | 20.9 | β− | CG
691 | 100Rh | 45 | 55 | 8.927167 | 7.488×104 | 20.8 | β+ |
692 | 133I | 53 | 80 | 8.717094 | 7.488×104 | 20.8 | β− |
693 | 122Xe | 54 | 68 | 8.770959 | 7.236×104 | 20.1 | β+ |
694 | 255Fm | 100 | 155 | 7.742704 | 7.225×104 | 20.1 | α, SF (tr) |
695 | 95Tc | 43 | 52 |  | 7.2×104 | 20.0 | β+ |
696 | 181Re | 75 | 106 | 8.328294 | 7.164×104 | 19.9 | β+ |
697 | 197Pt | 78 | 119 | 8.225756 | 7.161×104 | 19.9 | β− |
698 | 135La | 57 | 78 | 8.713179 | 7.020×104 | 19.5 | β+ |
699 | 194Ir | 77 | 117 |  | 6.941×104 | 19.3 | β− |
700 | 142Pr | 59 | 83 | 8.661417 | 6.883×104 | 19.1 | β−,EC (tr) |
701 | 200mAu | 79 | 121 | 8.202877 | 6.732×104 | 18.7 | β−, IT (18) |
702 | 159Gd | 64 | 95 | 8.502576 | 6.652×104 | 18.5 | β− |
703 | 135Ce | 58 | 77 | 8.698179 | 6.372×104 | 17.7 | β+ |
704 | 193Au | 79 | 114 | 8.244353 | 6.354×104 | 17.7 | β+ |
705 | 151Tb | 65 | 86 | 8.545692 | 6.339×104 | 17.6 | β+, α (tr) |
706 | 55Co | 27 | 28 | 9.053647 | 6.311×104 | 17.5 | β+ |
707 | 152Tb | 65 | 87 | 8.536591 | 6.300×104 | 17.5 | β+, α (tr) |
708 | 188Re | 75 | 113 | 8.278860 | 6.121×104 | 17.0 | β− | IM
709 | 125Xe | 54 | 71 | 8.768864 | 6.084×104 | 16.9 | β+ |
710 | 97Zr | 40 | 57 | 8.926451 | 6.028×104 | 16.7 | β− |
711 | 186Ir | 77 | 109 | 8.281935 | 5.990×104 | 16.6 | β+ |
712 | 86Zr | 40 | 46 | 8.975979 | 5.940×104 | 16.5 | β+ |
713 | 76Br | 35 | 41 | 8.996183 | 5.832×104 | 16.2 | β+ |
714 | 119Te | 52 | 67 |  | 5.778×104 | 16.1 | EC, e+ (2.1) |
715 | 242Am | 95 | 147 |  | 5.767×104 | 16.0 | β−, EC (17) |
716 | 170Hf | 72 | 98 | 8.402210 | 5.764×104 | 16.0 | β+ |
717 | 157Eu | 63 | 94 | 8.513792 | 5.465×104 | 15.2 | β− |
718 | 24Na | 11 | 13 | 8.422082 | 5.382×104 | 15.0 | β− | CG, IM
719 | 76Kr | 36 | 40 | 8.979406 | 5.328×104 | 14.8 | β+ |
720 | 86Y | 39 | 47 | 8.993234 | 5.306×104 | 14.7 | β+ |
721 | 211Rn | 86 | 125 | 8.112825 | 5.256×104 | 14.6 | β+, α (27) |
722 | 90Nb | 41 | 49 | 8.989727 | 5.256×104 | 14.6 | β+ |
723 | 185Ir | 77 | 108 | 8.289382 | 5.184×104 | 14.4 | β+ |
724 | 240U | 92 | 148 | 7.851682 | 5.076×104 | 14.1 | β− | DP
725 | 72Ga | 31 | 41 | 9.023958 | 5.074×104 | 14.1 | β− |
726 | 69mZn | 30 | 39 | 9.056536 | 4.954×104 | 13.8 | IT, β− (tr) |
727 | 109Pd | 46 | 63 | 8.875061 | 4.932×104 | 13.7 | β− |
728 | 87mY | 39 | 48 |  | 4.813×104 | 13.4 | IT, β+ (1.6) |
729 | 123I | 53 | 70 | 8.786311 | 4.760×104 | 13.2 | β+ | IM
730 | 191mOs | 76 | 115 |  | 4.716×104 | 13.1 | IT |
731 | 183Os | 76 | 107 | 8.309907 | 4.680×104 | 13.0 | β+ |
732 | 150mEu | 63 | 87 |  | 4.608×104 | 12.8 | β−, β+(11) |
733 | 64Cu | 29 | 35 | 9.093581 | 4.572×104 | 12.7 | β+, β− (38) | IM
734 | 182mRe | 75 | 107 |  | 4.572×104 | 12.7 | β+ |
735 | 200Pt | 78 | 122 | 8.204342 | 4.500×104 | 12.5 | β− |
736 | 130I | 53 | 77 | 8.740035 | 4.450×104 | 12.4 | β− |
737 | 42K | 19 | 23 | 8.905175 | 4.436×104 | 12.3 | β− | IM
738 | 171Hf | 72 | 99 | 8.395480 | 4.356×104 | 12.1 | β+ |
739 | 239Am | 95 | 144 | 7.864666 | 4.284×104 | 11.9 | β+, α (0.01) |
740 | 193mHg | 80 | 113 | 8.231483 | 4.248×104 | 11.8 | β+, IT (7.2) |
741 | 203Bi | 83 | 120 | 8.177436 | 4.234×104 | 11.8 | β+ |
742 | 77Ge | 32 | 45 | 8.996185 | 4.068×104 | 11.3 | β− |
743 | 204Bi | 83 | 121 | 8.172651 | 4.039×104 | 11.2 | β+ |
744 | 189Pt | 78 | 111 | 8.264359 | 3.913×104 | 10.9 | β+ |
745 | 212Pb | 82 | 130 | 8.106928 | 3.830×104 | 10.6 | β− | DP, IM
746 | 195Hg | 80 | 115 |  | 3.791×104 | 10.5 | β+ |
747 | 175Ta | 73 | 102 | 8.370813 | 3.780×104 | 10.5 | β+ |
748 | 245Pu | 94 | 151 | 7.813752 | 3.780×104 | 10.5 | β− |
749 | 187Ir | 77 | 110 | 8.283713 | 3.780×104 | 10.5 | β+ |
750 | 165Er | 68 | 97 | 8.462406 | 3.730×104 | 10.4 | β+ |
751 | 93Y | 39 | 54 | 8.976951 | 3.665×104 | 10.2 | β− |
752 | 244Am | 95 | 149 | 7.825914 | 3.636×104 | 10.1 | β− |
753 | 266Lr | 103 | 163 |  | 3.600×104 | 10.0 | SF |
754 | 154m1Tb | 65 | 89 |  | 3.598×104 | 9.99 | β+, IT(22) |
755 | 183mOs | 76 | 107 |  | 3.564×104 | 9.90 | β+, IT(15) |
756 | 155Dy | 66 | 89 | 8.517521 | 3.564×104 | 9.90 | β+ |
757 | 91Sr | 38 | 53 | 8.990503 | 3.467×104 | 9.63 | β− |
758 | 196m2Au | 79 | 117 |  | 3.456×104 | 9.60 | IT |
759 | 66Ga | 31 | 35 | 9.036843 | 3.416×104 | 9.49 | β+ |
760 | 156Sm | 62 | 94 | 8.516007 | 3.384×104 | 9.40 | β− |
761 | 127Te | 52 | 75 |  | 3.366×104 | 9.35 | β− |
762 | 201Pb | 82 | 119 | 8.196989 | 3.359×104 | 9.33 | β+ |
763 | 152mEu | 63 | 89 |  | 3.352×104 | 9.31 | β−, β+(28) |
764 | 62Zn | 30 | 32 | 9.057957 | 3.307×104 | 9.19 | β+ |
765 | 135Xe | 54 | 81 | 8.711453 | 3.290×104 | 9.14 | β− |
766 | 58mCo | 27 | 31 |  | 3.276×104 | 9.10 | IT |
767 | 128Sb | 51 | 77 | 8.732343 | 3.244×104 | 9.01 | β− |
768 | 137Ce | 58 | 79 |  | 3.24×104 | 9.00 | β+ |
769 | 234Pu | 94 | 140 | 7.898892 | 3.168×104 | 8.80 | β+, α (~6) |
770 | 184Ta | 73 | 111 | 8.304154 | 3.132×104 | 8.70 | β− |
771 | 250Es | 99 | 151 | 7.778407 | 3.096×104 | 8.60 | β+, α (<3) |
772 | 101Pd | 46 | 55 | 8.917149 | 3.049×104 | 8.47 | β+ |
773 | 52Fe | 26 | 26 | 9.000789 | 2.979×104 | 8.28 | β+ |
774 | 173Tm | 69 | 104 | 8.396524 | 2.966×104 | 8.24 | β− |
775 | 180Ta | 73 | 107 |  | 2.935×104 | 8.15 | EC, β− (14) |
776 | 157Dy | 66 | 91 | 8.513544 | 2.930×104 | 8.14 | β+ |
777 | 210At | 85 | 125 | 8.128337 | 2.916×104 | 8.10 | β+, α (0.2) |
778 | 176Ta | 73 | 103 | 8.363202 | 2.912×104 | 8.09 | β+ |
779 | 166Tm | 69 | 97 | 8.444183 | 2.772×104 | 7.70 | β+ |
780 | 256mEs | 99 | 157 | 7.730742 | 2.736×104 | 7.60 | β− |
781 | 171Er | 68 | 103 | 8.408901 | 2.706×104 | 7.52 | β− |
782 | 199Tl | 81 | 118 | 8.212333 | 2.671×104 | 7.42 | β+ |
783 | 211At | 85 | 126 | 8.126527 | 2.597×104 | 7.21 | β+, α (42) |
784 | 73Se | 34 | 39 | 9.005821 | 2.574×104 | 7.15 | β+ |
785 | 93mMo | 42 | 51 |  | 2.466×104 | 6.85 | IT, β+ (0.1) |
786 | 234Pa | 91 | 143 | 7.898930 | 2.412×104 | 6.70 | β− | DP
787 | 135I | 53 | 82 | 8.691994 | 2.365×104 | 6.57 | β− |
788 | 107Cd | 48 | 59 | 8.884271 | 2.340×104 | 6.50 | β+ |
789 | 82mRb | 37 | 45 | 8.999608 | 2.330×104 | 6.47 | β+, IT (<0.3) |
790 | 153Dy | 66 | 87 | 8.523288 | 2.304×104 | 6.40 | β+, α (tr) |
791 | 127Cs | 55 | 72 | 8.750383 | 2.250×104 | 6.25 | β+ |
792 | 228Ac | 89 | 139 | 7.944591 | 2.214×104 | 6.15 | β− | DP
793 | 99mTc | 43 | 56 |  | 2.162×104 | 6.01 | IT, β− (tr) | IM
794 | 145Pr | 59 | 86 | 8.620514 | 2.154×104 | 5.98 | β− |
795 | 189mOs | 76 | 113 |  | 2.092×104 | 5.81 | IT |
796 | 207Po | 84 | 123 | 8.154158 | 2.088×104 | 5.80 | β+, α (0.02) |
797 | 90Mo | 42 | 48 | 8.962072 | 2.002×104 | 5.56 | β+ |
798 | 257Md | 101 | 156 | 7.725040 | 1.987×104 | 5.52 | EC, α (15), SF (tr) |
799 | 111mPd | 46 | 65 | 8.844589 | 1.980×104 | 5.50 | IT, β− (27) |
800 | 139mNd | 60 | 79 | 8.659529 | 1.980×104 | 5.50 | β+, IT (12) |
801 | 180mHf | 72 | 108 |  | 1.969×104 | 5.47 | IT, β− (0.3) |
802 | 209At | 85 | 124 | 8.132954 | 1.948×104 | 5.41 | β+, α (4.1) |
803 | 113Ag | 47 | 66 | 8.841531 | 1.933×104 | 5.37 | β− |
804 | 156m2Tb | 65 | 91 |  | 1.908×104 | 5.30 | IT (?), β+ (?) |
805 | 198Tl | 81 | 117 | 8.210166 | 1.908×104 | 5.30 | β+ |
806 | 251Fm | 100 | 151 | 7.768590 | 1.908×104 | 5.30 | β+, α (1.8) |
807 | 138Nd | 60 | 78 | 8.665661 | 1.814×104 | 5.04 | β+ |
808 | 160mHo | 67 | 93 | 8.485877 | 1.807×104 | 5.02 | IT, β+ (27) |
809 | 118mSb | 51 | 67 | 8.814963 | 1.800×104 | 5.00 | β+ |
810 | 243Pu | 94 | 149 | 7.833648 | 1.784×104 | 4.96 | β− |
811 | 192Au | 79 | 113 | 8.242036 | 1.778×104 | 4.94 | β+ |
812 | 110In | 49 | 61 | 8.857464 | 1.764×104 | 4.90 | β+ |
813 | 133mCe | 58 | 75 | 8.690771 | 1.764×104 | 4.90 | β+ |
814 | 94Tc | 43 | 51 | 8.966583 | 1.758×104 | 4.88 | β+ |
815 | 85mY | 39 | 46 | 8.986880 | 1.750×104 | 4.86 | β+, IT (tr) |
816 | 73Ga | 31 | 42 | 9.026112 | 1.750×104 | 4.86 | β− |
817 | 192Hg | 80 | 112 | 8.238051 | 1.746×104 | 4.85 | β+ |
818 | 132La | 57 | 75 | 8.705721 | 1.728×104 | 4.80 | β+ |
819 | 99mRh | 45 | 54 |  | 1.692×104 | 4.70 | β+, IT (<0.16) |
820 | 267Db | 105 | 162 | 7.644361 | 1.656×104 | 4.60 | SF |
821 | 179Lu | 71 | 108 | 8.345428 | 1.652×104 | 4.59 | β− |
822 | 81Rb | 37 | 44 | 9.002871 | 1.645×104 | 4.57 | β+ | IM
823 | 243Bk | 97 | 146 | 7.829801 | 1.620×104 | 4.50 | β+, α (~0.15) |
824 | 115mIn | 49 | 66 |  | 1.615×104 | 4.49 | IT, β− (5.0) |
825 | 85mKr | 36 | 49 |  | 1.613×104 | 4.48 | β−, IT (21) |
826 | 105Ru | 44 | 61 | 8.889689 | 1.598×104 | 4.44 | β− |
827 | 80mBr | 35 | 45 | 9.018872 | 1.591×104 | 4.42 | IT |
828 | 139Pr | 59 | 80 | 8.681565 | 1.588×104 | 4.41 | β+ |
829 | 129Sb | 51 | 78 | 8.727358 | 1.584×104 | 4.40 | β− |
830 | 244Bk | 97 | 147 | 7.822491 | 1.566×104 | 4.35 | β+, α (tr) |
831 | 109In | 49 | 60 | 8.864805 | 1.512×104 | 4.20 | β+ |
832 | 184Hf | 72 | 112 | 8.296871 | 1.483×104 | 4.12 | β− |
833 | 149Tb | 65 | 84 | 8.551166 | 1.482×104 | 4.12 | β+, α (17) |
834 | 110Sn | 50 | 60 | 8.851727 | 1.480×104 | 4.11 | β+ |
835 | 44Sc | 21 | 23 |  | 1.429×104 | 3.97 | β+ |
836 | 71mZn | 30 | 41 | 9.017370 | 1.426×104 | 3.96 | β−, IT (tr) |
837 | 141La | 57 | 84 | 8.659540 | 1.411×104 | 3.92 | β− |
838 | 133La | 57 | 76 | 8.714109 | 1.408×104 | 3.91 | β+ |
839 | 43Sc | 21 | 22 | 8.912907 | 1.401×104 | 3.89 | β+ |
840 | 195mIr | 77 | 118 | 8.233326 | 1.368×104 | 3.80 | β−, IT (5) |
841 | 193Hg | 80 | 113 |  | 1.368×104 | 3.80 | β+ |
842 | 176mLu | 71 | 105 |  | 1.319×104 | 3.66 | β−, EC (0.1) |
843 | 262Lr | 103 | 159 | 7.681556 | 1.296×104 | 3.60 | SF, β+, α |
844 | 202mPb | 82 | 120 |  | 1.274×104 | 3.54 | IT, β+ (9.5) |
845 | 92Y | 39 | 53 | 8.993208 | 1.274×104 | 3.54 | β− |
846 | 204Po | 84 | 120 | 8.161200 | 1.271×104 | 3.53 | β+, α (0.7) |
847 | 132Ce | 58 | 74 | 8.696131 | 1.264×104 | 3.51 | β+ |
848 | 150Tb | 65 | 85 | 8.545394 | 1.253×104 | 3.48 | β+, α (tr) |
849 | 117mCd | 48 | 69 | 8.808840 | 1.210×104 | 3.36 | β− |
850 | 61Cu | 29 | 32 | 9.087452 | 1.200×104 | 3.33 | β+ |
851 | 209Pb | 82 | 127 | 8.155607 | 1.171×104 | 3.25 | β− | DP
852 | 254Fm | 100 | 154 | 7.752808 | 1.166×104 | 3.24 | α, SF (0.06) |
853 | 250Bk | 97 | 153 | 7.779523 | 1.156×104 | 3.21 | β− |
854 | 161Er | 68 | 93 | 8.476352 | 1.156×104 | 3.21 | β+ |
855 | 190mRe | 75 | 115 | 8.257433 | 1.152×104 | 3.20 | β− (54), IT |
856 | 90mY | 39 | 51 |  | 1.148×104 | 3.19 | IT, β− (tr) |
857 | 191Au | 79 | 112 | 8.248343 | 1.145×104 | 3.18 | β+ |
858 | 173Ta | 73 | 100 | 8.374218 | 1.130×104 | 3.14 | β+ |
859 | 112Ag | 47 | 65 | 8.844756 | 1.127×104 | 3.13 | β− |
860 | 247Cf | 98 | 149 | 7.803566 | 1.120×104 | 3.11 | β+, α (0.04) |
861 | 184Ir | 77 | 107 | 8.286599 | 1.112×104 | 3.09 | β+ |
862 | 190m3Ir | 77 | 113 |  | 1.111×104 | 3.09 | β+, IT (8.6) |
863 | 45Ti | 22 | 23 | 8.938121 | 1.109×104 | 3.08 | β+ |
864 | 167Ho | 67 | 100 | 8.444304 | 1.081×104 | 3.00 | β− |
865 | 264Lr | 103 | 161 |  | 1.081×104 | 3.00 | SF[29] |
866 | 134Sm | 62 | 72 |  | 1.048×104 | 2.91 | IT |
867 | 239Cm | 96 | 143 | 7.857143 | 1.044×104 | 2.90 | β+, α (tr) |
868 | 197Tl | 81 | 116 | 8.215190 | 1.022×104 | 2.84 | β+ |
869 | 88Kr | 36 | 52 | 8.976918 | 1.022×104 | 2.84 | β− |
870 | 38S | 16 | 22 | 8.778196 | 1.022×104 | 2.84 | β− |
871 | 87mSr | 38 | 49 |  | 1.013×104 | 2.82 | IT, EC (0.3) |
872 | 117Sb | 51 | 66 | 8.828977 | 1.008×104 | 2.80 | β+ |
873 | 224Ac | 89 | 135 | 7.980993 | 1.001×104 | 2.78 | β+, α (9.4), β−(<1.6) |
874 | 93Tc | 43 | 50 | 8.970274 | 9.900×103 | 2.75 | β+ |
875 | 85Y | 39 | 46 |  | 9.648×103 | 2.68 | β+ |
876 | 150Pm | 61 | 89 | 8.562014 | 9.648×103 | 2.68 | β− |
877 | 92Sr | 38 | 54 | 8.972067 | 9.576×103 | 2.66 | β− |
878 | 256Fm | 100 | 156 | 7.737398 | 9.456×103 | 2.63 | SF, α (8.1) |
879 | 31Si | 14 | 17 | 8.811618 | 9.438×103 | 2.62 | β− | CG
880 | 56Mn | 25 | 31 | 9.087572 | 9.284×103 | 2.58 | β− |
881 | 65Ni | 28 | 37 | 9.073267 | 9.062×103 | 2.52 | β− |
882 | 195Ir | 77 | 118 |  | 9×103 | 2.50 | β− |
883 | 176W | 74 | 102 | 8.359055 | 9.000×103 | 2.50 | β+ |
884 | 117Cd | 48 | 69 |  | 8.964×103 | 2.49 | β− |
885 | 116Te | 52 | 64 | 8.806414 | 8.964×103 | 2.49 | β+ |
886 | 141Nd | 60 | 81 | 8.668476 | 8.964×103 | 2.49 | β+ |
887 | 161Ho | 67 | 94 | 8.488737 | 8.928×103 | 2.48 | β+ |
888 | 210Rn | 86 | 124 | 8.117032 | 8.640×103 | 2.40 | α (96), β+ |
889 | 198Pb | 82 | 116 | 8.202893 | 8.640×103 | 2.40 | β+ |
890 | 238Cm | 96 | 142 | 7.863764 | 8.640×103 | 2.40 | β+, α |
891 | 83Br | 35 | 48 | 9.023243 | 8.640×103 | 2.40 | β− |
892 | 152Dy | 66 | 86 | 8.532670 | 8.568×103 | 2.38 | β+, α (0.1) | IM
893 | 178mTa | 73 | 105 | 8.355075 | 8.496×103 | 2.36 | β+ |
894 | 187Pt | 78 | 109 | 8.267638 | 8.460×103 | 2.35 | β+ |
895 | 165Dy | 66 | 99 | 8.456891 | 8.402×103 | 2.33 | β− |
896 | 132I | 53 | 79 | 8.720570 | 8.262×103 | 2.30 | β− |
897 | 158Er | 68 | 90 | 8.484619 | 8.244×103 | 2.29 | β+ |
898 | 66Ge | 32 | 34 | 9.004964 | 8.136×103 | 2.26 | β+ |
899 | 129Ba | 56 | 73 | 8.730746 | 8.028×103 | 2.23 | β+ |
900 | 150Sm | 62 | 88 |  | 7.992×103 | 2.22 | β+, α (tr?) |
901 | 177W | 74 | 103 | 8.352118 | 7.920×103 | 2.20 | β+ |
902 | 106mRh | 45 | 61 | 8.884761 | 7.860×103 | 2.18 | β− |
903 | 129mBa | 56 | 73 |  | 7.776×103 | 2.16 | β+, IT (tr?) |
904 | 138mPr | 59 | 79 | 8.671088 | 7.632×103 | 2.12 | β+ |
905 | 121I | 53 | 68 | 8.784443 | 7.632×103 | 2.12 | β+ |
906 | 127Sn | 50 | 77 | 8.728800 | 7.560×103 | 2.10 | β− |
907 | 123Xe | 54 | 69 | 8.764409 | 7.488×103 | 2.08 | β+ |
908 | 186Pt | 78 | 108 | 8.274897 | 7.488×103 | 2.08 | β+, α (tr) |
909 | 245Am | 95 | 150 | 7.818674 | 7.380×103 | 2.05 | β− |
910 | 89Nb | 41 | 48 | 8.977507 | 7.308×103 | 2.03 | β+ |
911 | 195mOs | 76 | 119 |  | 7.2×103 | 2.00 | β−, IT (?) |
912 | 117mIn | 49 | 68 | 8.828849 | 6.972×103 | 1.94 | β−, IT (47) |
913 | 186mIr | 77 | 109 |  | 6.912×103 | 1.92 | β+, IT (~25) |
914 | 177Yb | 70 | 107 | 8.359401 | 6.880×103 | 1.91 | β− |
915 | 198mTl | 81 | 117 |  | 6.732×103 | 1.87 | β+, IT (44) |
916 | 196Tl | 81 | 115 | 8.211618 | 6.624×103 | 1.84 | β+ |
917 | 83m2Kr | 36 | 47 |  | 6.588×103 | 1.83 | IT |
918 | 18F | 9 | 9 | 8.022789 | 6.585×103 | 1.83 | β+ | CG,IM
919 | 41Ar | 18 | 23 | 8.877852 | 6.577×103 | 1.83 | β− | CG
920 | 163Tm | 69 | 94 | 8.456205 | 6.516×103 | 1.81 | β+ |
921 | 239Pa | 91 | 148 | 7.848148 | 6.480×103 | 1.80 | β− |
922 | 201Bi | 83 | 118 | 8.177875 | 6.480×103 | 1.80 | β+, α |
923 | 207At | 85 | 122 | 8.135303 | 6.480×103 | 1.80 | β+, α (~10) |
924 | 224Rn | 86 | 138 | 7.971327 | 6.420×103 | 1.78 | β− |
925 | 80Sr | 38 | 42 | 8.950177 | 6.378×103 | 1.77 | β+ |
926 | 181Os | 76 | 105 | 8.311935 | 6.300×103 | 1.75 | β+ |
927 | 205Po | 84 | 121 | 8.156737 | 6.264×103 | 1.74 | β+, α (0.04) |
928 | 149Nd | 60 | 89 | 8.570529 | 6.221×103 | 1.73 | β− |
929 | 202Bi | 83 | 119 | 8.173966 | 6.192×103 | 1.72 | β+, α (tr) |
930 | 249Es | 99 | 150 | 7.785464 | 6.132×103 | 1.70 | β+~, α (0.6) |
931 | 147Tb | 65 | 82 | 8.552634 | 6.120×103 | 1.70 | β+ |
932 | 87Zr | 40 | 47 | 8.983373 | 6.048×103 | 1.68 | β+ |
933 | 126Ba | 56 | 70 | 8.727439 | 6.000×103 | 1.67 | β+ |
934 | 113mIn | 49 | 64 |  | 5.968×103 | 1.66 | IT |
935 | 61Co | 27 | 34 | 9.102449 | 5.940×103 | 1.65 | β− |
936 | 95Ru | 44 | 51 | 8.949749 | 5.915×103 | 1.64 | β+ |
937 | 238Am | 95 | 143 | 7.867882 | 5.880×103 | 1.63 | β+,α (tr) |
938 | 208At | 85 | 123 | 8.131376 | 5.868×103 | 1.63 | β+, α (0.6) |
939 | 133Ce | 58 | 75 |  | 5.82×103 | 1.62 | β+ |
940 | 75Br | 35 | 40 | 8.993181 | 5.802×103 | 1.61 | β+ |
941 | 152m5Eu | 63 | 89 |  | 5.76×103 | 1.60 | IT |
942 | 259Md | 101 | 158 | 7.709860 | 5.760×103 | 1.60 | SF, α (<1.3) |
943 | 197mPt | 78 | 119 |  | 5.725×103 | 1.59 | IT, β− (3.3) |
944 | 230Ra | 88 | 142 | 7.921249 | 5.580×103 | 1.55 | β− |
945 | 142La | 57 | 85 | 8.634954 | 5.466×103 | 1.52 | β− |
946 | 78As | 33 | 45 | 9.004879 | 5.442×103 | 1.51 | β− |
947 | 199Pb | 82 | 117 | 8.198111 | 5.400×103 | 1.50 | β+ |
948 | 78Ge | 32 | 46 | 8.992635 | 5.280×103 | 1.47 | β− |
949 | 255Cf | 98 | 157 | 7.738739 | 5.100×103 | 1.42 | β− |
950 | 196mTl | 81 | 115 |  | 5.076×103 | 1.41 | β+, IT (3.8) |
951 | 196mIr | 77 | 119 | 8.219440 | 5.040×103 | 1.40 | β−, IT (<0.3) |
952 | 132mI | 53 | 79 |  | 4.993×103 | 1.39 | IT, β− (14) |
953 | 139Ba | 56 | 83 | 8.682217 | 4.984×103 | 1.38 | β− |
954 | 75Ge | 32 | 43 | 9.029413 | 4.967×103 | 1.38 | β− |
955 | 120I | 53 | 67 | 8.769577 | 4.896×103 | 1.36 | β+ |
956 | 266Db | 105 | 161 |  | 4.8×103 | 1.33 | α ?, SF ?, β+ ? |
957 | 256Md | 101 | 155 | 7.729062 | 4.620×103 | 1.28 | β+, α (9.2), SF (<3) |
958 | 137Pr | 59 | 78 | 8.678459 | 4.608×103 | 1.28 | β+ |
959 | 87Kr | 36 | 51 | 8.999022 | 4.578×103 | 1.27 | β− |
960 | 164Yb | 70 | 94 | 8.443419 | 4.548×103 | 1.26 | β+ |
961 | 163Er | 68 | 95 | 8.471168 | 4.500×103 | 1.25 | β+ |
962 | 77Kr | 36 | 41 | 8.982618 | 4.464×103 | 1.24 | β+ |
963 | 178Yb | 70 | 108 | 8.350530 | 4.440×103 | 1.23 | β− |
964 | 237Am | 95 | 142 | 7.874830 | 4.380×103 | 1.22 | β+,α (0.03) |
965 | 142Sm | 62 | 80 | 8.627616 | 4.349×103 | 1.21 | β+ |
966 | 97Nb | 41 | 56 | 8.953864 | 4.326×103 | 1.20 | β− |
967 | 185Pt | 78 | 107 | 8.269598 | 4.254×103 | 1.18 | β+ |
968 | 195Tl | 81 | 114 | 8.215712 | 4.176×103 | 1.16 | β+ |
969 | 129Te | 52 | 77 |  | 4.176×103 | 1.16 | β− |
970 | 104Ag | 47 | 57 | 8.889702 | 4.152×103 | 1.15 | β+ |
971 | 110mIn | 49 | 61 |  | 4.146×103 | 1.15 | β+ |
972 | 174Ta | 73 | 101 | 8.368684 | 4.104×103 | 1.14 | β+ |
973 | 68Ga | 31 | 37 | 9.057888 | 4.063×103 | 1.13 | β+ | IM
974 | 85mSr | 38 | 47 |  | 4.058×103 | 1.13 | IT, β+ (13) |
975 | 190mIr | 77 | 113 |  | 4.032×103 | 1.12 | IT |
976 | 162mHo | 67 | 95 | 8.478371 | 4.020×103 | 1.12 | IT, β+ (38) |
977 | 204m2Pb | 82 | 122 |  | 4.016×103 | 1.12 | IT |
978 | 89mNb | 41 | 48 |  | 3.96×103 | 1.10 | β+ |
979 | 103Ag | 47 | 56 | 8.894541 | 3.942×103 | 1.10 | β+ |
980 | 249Cm | 96 | 153 | 7.787191 | 3.849×103 | 1.07 | β− |
981 | 183Hf | 72 | 111 | 8.307885 | 3.841×103 | 1.07 | β− |
982 | 229Ac | 89 | 140 | 7.937048 | 3.762×103 | 1.05 | β− |
983 | 117Te | 52 | 65 | 8.798652 | 3.720×103 | 1.03 | β+ |
984 | 240Np | 93 | 147 | 7.853348 | 3.714×103 | 1.03 | β− | DP
985 | 182mHf | 72 | 110 |  | 3.69×103 | 1.03 | β−, IT (46) |
986 | 212Bi | 83 | 129 | 8.109617 | 3.633×103 | 1.01 | β−,α (36) | DP
987 | 116mSb | 51 | 65 | 8.816483 | 3.618×103 | 1.01 | β+ |
988 | 148Tb | 65 | 83 | 8.547949 | 3.600×103 | 1.00 | β+ |
989 | 270Db | 105 | 165 |  | 3.600×103 | 1.00 | α, SF, ε? |

### Radionuclides with half-lives of 1 minute to 1 hour[edit]

Main article: List of radioactive nuclides by half-life § 100 seconds

### Radionuclides with half-lives of 1 second to 1 minute[edit]

Main article: List of radioactive nuclides by half-life § 100 seconds

### Radionuclides with half-lives less than 1 second[edit]

Main article: List of radioactive nuclides by half-life § 10−3 seconds (milliseconds)

## See also[edit]

* Isotope geochemistry
* List of elements by stability of isotopes
* List of radioactive nuclides by half-life
* Monoisotopic element
* Mononuclidic element
* Primordial nuclide
* Radionuclide
* Stable nuclide
* Table of nuclides

### Sources[edit]

Almost all data are taken from reference.[30] For more recent updates, see reference.[31] These sources do not indicate whether certain heavy isotopes starting from Lr, Rf, Db, ... (etc.) were produced, observed, or only predicted from estimated data.

## Notes[edit]

1. ^ Two further nuclides, plutonium-244 and samarium-146, have half-lives just long enough (8.0×107 and 1.03×108 years) that they could have survived from the formation of the Solar System and be present on Earth in trace quantities (having survived 57 and 45 half-lives). They have previously been considered primordial, but recent studies failed to find any evidence of them on Earth.[citation needed]

## References[edit]

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## External links[edit]

* National Nuclear Data Center, Brookhaven National Laboratory
* The 2016 Atomic Mass Evaluation, AMDC
* Karlsruhe Nuclide Chart, 9th edition, 2015, Joseph Magill, Gerda Pfennig, Raymond Dreher, Zsolt Sóti
* National Isotope Development Center Reference information on isotopes, and coordination and management of isotope production, availability, and distribution
* Isotope Development & Production for Research and Applications (IDPRA) U.S. Department of Energy program for isotope production and production research and development
* Accelerator Systems and Stable Isotopes Group at ORNL
* Atomic Weights and Isotopic Compositions for All Elements U.S. National Institute of Standards and Technology
* Table of nuclides (compact, with energy per baryon) Overview picture for energy of nuclides

* v
* t
* e

Charts of nuclides

Representations|

* List of nuclides, Table of nuclides
* segmented, wide
* segmented, narrow

Images|

* Nuclide map (segmented), Nuclide map (complete), Table of isotopes

Articles on isotopes of an element|

* Isotope index by periodic table

Various tables and lists of the nuclides
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