Isotopes of lutetium

Short description: Atoms with 71 protons but different neutron numbers

Main isotopes of Chemistry:lutetium (71Lu) | Iso­tope | Decay

|

| abun­dance | half-life (t1/2) | mode | pro­duct
173Lu  | syn | 1.37 y | ε | 173Yb
174Lu  | syn  | 3.31 y  | ε  | 174Yb
175Lu  | 97.401%  | stable
176Lu  | 2.599%  | 3.78×1010 y  | β− | 176Hf
Standard atomic weight Ar, standard(Lu)|

* 174.9668(1)[1]

view * talk * edit

Naturally occurring lutetium (71Lu) is composed of one stable isotope 175Lu (97.41% natural abundance) and one long-lived radioisotope, 176Lu with a half-life of 3.78 × 1010 years (2.59% natural abundance). Forty radioisotopes have been characterized, with the most stable, besides 176Lu, being 174Lu with a half-life of 3.31 years, and 173Lu with a half-life of 1.37 years. All of the remaining radioactive isotopes have half-lives that are less than 9 days, and the majority of these have half-lives that are less than half an hour. This element also has 18 meta states, with the most stable being 177mLu (t1/2 160.4 days), 174mLu (t1/2 142 days) and 178mLu (t1/2 23.1 minutes).

The isotopes of lutetium range in mass number from 149 to 184. The primary decay mode before the most abundant stable isotope, 175Lu, is electron capture (with some alpha and positron emission), and the primary mode after is beta emission. The primary decay products before 175Lu are isotopes of ytterbium and the primary products after are isotopes of hafnium. All isotopes of lutetium are either radioactive or, in the case of 175Lu, observationally stable, meaning that 175Lu is predicted to be radioactive but no actual decay has been observed.[2]

## List of isotopes

Nuclide
[n 1] | Z | N | Isotopic mass (u)
[n 2][n 3] | Half-life
[n 4][n 5] | Decay
mode
[n 6] | Daughter
isotope
[n 7] | Spin and
parity
[n 8][n 5] | Physics:Natural abundance (mole fraction)

|
|
|
|
|
|
|
|

Excitation energy[n 5] | Normal proportion  | Range of variation
149Lu[3] | 71  | 78  |  | 450+170
−100 ns | p | 148Yb  | 11/2−  |
150Lu  | 71  | 79  | 149.97323(54)#  | 43(5) ms  | p (80%)  | 149Yb  | (2+)  |
β+ (20%)  | 150Yb
150mLu  | 34(15) keV  | 80(60) μs
[30(+95−15) μs]  | p  | 149Yb  | (1, 2)  |
151Lu  | 71  | 80  | 150.96757682  | 80.6(5) ms  | p (63.4%)  | 150Yb  | (11/2−)  |
β+ (36.6%)  | 151Yb
151mLu  | 77(5) keV  | 16(1) μs  | p | 150Yb  | (3/2+)  |
152Lu  | 71  | 81  | 151.96412(21)#  | 650(70) ms  | β+ (85%)  | 152Yb  | (5−, 6−)  |
β+, p (15%)  | 151Tm
153Lu  | 71  | 82  | 152.95877(22)  | 0.9(2) s  | α (70%)  | 149Tm  | 11/2−  |
β+ (30%)  | 153Yb
153m1Lu  | 80(5) keV  | 1# s  | IT  | 153Lu  | 1/2+  |
153m2Lu  | 2502.5(4) keV  | >0.1 μs  | IT  | 153Lu  | 23/2−  |
153m3Lu  | 2632.9(5) keV  | 15(3) μs  | IT  | 153m2Lu  | 27/2−  |
154Lu  | 71  | 83  | 153.95752(22)#  | 1# s  | β+?  | 154Yb  | (2−)  |
α?  | 150Tm
154m1Lu  | 58(13) keV  | 1.12(8) s  | β+ | 154Yb  | (9+)  |
β+p?  | 153Tm
β+α?  | 150Er
α?  | 150Tm
154m2Lu  | >2562 keV  | 35(3) μs  | IT  | 154Lu  | (17+)  |
155Lu  | 71  | 84  | 154.954316(22)  | 68.6(16) ms  | α (76%)  | 151Tm  | (11/2−)  |
β+ (24%)  | 155Yb
155m1Lu  | 20(6) keV  | 138(8) ms  | α (88%)  | 151Tm  | (1/2+)  |
β+ (12%)  | 155Yb
155m2Lu  | 1781.0(20) keV  | 2.70(3) ms  |  |  | (25/2−)  |
156Lu  | 71  | 85  | 155.95303(8)  | 494(12) ms  | α (95%)  | 152Tm  | (2)−  |
β+ (5%)  | 156Yb
156mLu  | 220(80)# keV  | 198(2) ms  | α (94%)  | 152Tm  | (9)+  |
β+ (6%)  | 156Yb
157Lu  | 71  | 86  | 156.950098(20)  | 6.8(18) s  | β+ | 157Yb  | (1/2+, 3/2+)  |
α  | 153Tm
157mLu  | 21.0(20) keV  | 4.79(12) s  | β+ (94%)  | 157Yb  | (11/2−)  |
α (6%)  | 153Tm
158Lu  | 71  | 87  | 157.949313(16)  | 10.6(3) s  | β+ (99.09%)  | 158Yb  | 2−  |
α (.91%)  | 154Tm
159Lu  | 71  | 88  | 158.94663(4)  | 12.1(10) s  | β+ (99.96%)  | 159Yb  | 1/2+#  |
α (.04%)  | 155Tm
159mLu  | 100(80)# keV  | 10# s  |  |  | 11/2−#  |
160Lu  | 71  | 89  | 159.94603(6)  | 36.1(3) s  | β+ | 160Yb  | 2−#  |
α (10−4%)  | 156Tm
160mLu  | 0(100)# keV  | 40(1) s  |  |  |  |
161Lu  | 71  | 90  | 160.94357(3)  | 77(2) s  | β+ | 161Yb  | 1/2+  |
161mLu  | 166(18) keV  | 7.3(4) ms  | IT  | 161Lu  | (9/2−)  |
162Lu  | 71  | 91  | 161.94328(8)  | 1.37(2) min  | β+ | 162Yb  | (1−)  |
162m1Lu  | 120(200)# keV  | 1.5 min  | β+ | 162Yb  | 4−#  |
IT (rare)  | 162Lu
162m2Lu  | 300(200)# keV  | 1.9 min  |  |  |  |
163Lu  | 71  | 92  | 162.94118(3)  | 3.97(13) min  | β+ | 163Yb  | 1/2(+)  |
164Lu  | 71  | 93  | 163.94134(3)  | 3.14(3) min  | β+ | 164Yb  | 1(−)  |
165Lu  | 71  | 94  | 164.939407(28)  | 10.74(10) min  | β+ | 165Yb  | 1/2+  |
166Lu  | 71  | 95  | 165.93986(3)  | 2.65(10) min  | β+ | 166Yb  | (6−)  |
166m1Lu  | 34.37(5) keV  | 1.41(10) min  | β+ (58%)  | 166Yb  | 3(−)  |
IT (42%)  | 166Lu
166m2Lu  | 42.9(5) keV  | 2.12(10) min  |  |  | 0(−)  |
167Lu  | 71  | 96  | 166.93827(3)  | 51.5(10) min  | β+ | 167Yb  | 7/2+  |
167mLu  | 0(30)# keV  | >1 min  |  |  | 1/2(−#)  |
168Lu  | 71  | 97  | 167.93874(5)  | 5.5(1) min  | β+ | 168Yb | (6−)  |
168mLu  | 180(110) keV  | 6.7(4) min  | β+ (95%)  | 168Yb | 3+  |
IT (5%)  | 168Lu
169Lu  | 71  | 98  | 168.937651(6)  | 34.06(5) h  | β+ | 169Yb  | 7/2+  |
169mLu  | 29.0(5) keV  | 160(10) s  | IT  | 169Lu  | 1/2−  |
170Lu  | 71  | 99  | 169.938475(18)  | 2.012(20) d  | β+ | 170Yb | 0+  |
170mLu  | 92.91(9) keV  | 670(100) ms  | IT  | 170Lu  | (4)−  |
171Lu  | 71  | 100  | 170.9379131(30)  | 8.24(3) d  | β+ | 171Yb | 7/2+  |
171mLu  | 71.13(8) keV  | 79(2) s  | IT  | 171Lu  | 1/2−  |
172Lu  | 71  | 101  | 171.939086(3)  | 6.70(3) d  | β+ | 172Yb | 4−  |
172m1Lu  | 41.86(4) keV  | 3.7(5) min  | IT  | 172Lu  | 1−  |
172m2Lu  | 65.79(4) keV  | 0.332(20) μs  |  |  | (1)+  |
172m3Lu  | 109.41(10) keV  | 440(12) μs  |  |  | (1)+  |
172m4Lu  | 213.57(17) keV  | 150 ns  |  |  | (6−)  |
173Lu  | 71  | 102  | 172.9389306(26)  | 1.37(1) y  | EC | 173Yb | 7/2+  |
173mLu  | 123.672(13) keV  | 74.2(10) μs  |  |  | 5/2−  |
174Lu  | 71  | 103  | 173.9403375(26)  | 3.31(5) y  | β+ | 174Yb | (1)−  |
174m1Lu  | 170.83(5) keV  | 142(2) d  | IT (99.38%)  | 174Lu  | 6−  |
EC (.62%)  | 174Yb
174m2Lu  | 240.818(4) keV  | 395(15) ns  |  |  | (3+)  |
174m3Lu  | 365.183(6) keV  | 145(3) ns  |  |  | (4−)  |
175Lu  | 71  | 104  | 174.9407718(23)  | Observationally stable[n 9] | 7/2+  | 0.9741(2)
175m1Lu  | 1392.2(6) keV  | 984(30) μs  |  |  | (19/2+)  |
175m2Lu  | 353.48(13) keV  | 1.49(7) μs  |  |  | 5/2−  |
176Lu[n 10][n 11] | 71  | 105  | 175.9426863(23)  | 3.701(17)×1010 y | β− | 176Hf | 7−  | 0.0259(2)
EC (0.45(26)%)  | 176Yb
176mLu  | 122.855(6) keV  | 3.664(19) h  | β− (99.9%)  | 176Hf | 1−  |
EC (.095%)  | 176Yb
177Lu  | 71  | 106  | 176.9437581(23)  | 6.6475(20) d  | β− | 177Hf | 7/2+  |
177m1Lu  | 150.3967(10) keV  | 130(3) ns  |  |  | 9/2−  |
177m2Lu  | 569.7068(16) keV  | 155(7) μs  |  |  | 1/2+  |
177m3Lu  | 970.1750(24) keV  | 160.44(6) d  | β− (78.3%)  | 177Hf | 23/2−  |
IT (21.7%)  | 177Lu
177m4Lu  | 3900(10) keV  | 7(2) min
[6(+3−2) min]  |  |  | 39/2−  |
178Lu  | 71  | 107  | 177.945955(3)  | 28.4(2) min  | β− | 178Hf | 1(+)  |
178mLu  | 123.8(26) keV  | 23.1(3) min  | β− | 178Hf | 9(−)  |
179Lu  | 71  | 108  | 178.947327(6)  | 4.59(6) h  | β− | 179Hf | 7/2(+)  |
179mLu  | 592.4(4) keV  | 3.1(9) ms  | IT  | 179Lu  | 1/2(+)  |
180Lu  | 71  | 109  | 179.94988(8)  | 5.7(1) min  | β− | 180Hf | 5+  |
180m1Lu  | 13.9(3) keV  | ~1 s  | IT  | 180Lu  | 3−  |
180m2Lu  | 624.0(5) keV  | ≥1 ms  |  |  | (9−)  |
181Lu  | 71  | 110  | 180.95197(32)#  | 3.5(3) min  | β− | 181Hf  | (7/2+)  |
182Lu  | 71  | 111  | 181.95504(21)#  | 2.0(2) min  | β− | 182Hf  | (0,1,2)  |
183Lu  | 71  | 112  | 182.95736(9)  | 58(4) s  | β− | 183Hf  | (7/2+)  |
184Lu  | 71  | 113  | 183.96103(22)#  | 20(3) s  | β− | 184Hf  | (3+)  |
185Lu  | 71  | 114  | 184.96354(32)#  | 20# s  |  |  | 7/2+#  |
186Lu  | 71  | 115  | 185.96745(43)#  | 6# s  |  |  |  |
187Lu  | 71  | 116  | 186.97019(43)#  | 7# s  |  |  | 7/2+#  |
188Lu  | 71  | 117  | 187.97443(43)#  | 1# s  |  |  |  |
189Lu[4] | 71  | 118  |  |  |  |  |  |

1. ↑ mLu - Excited nuclear isomer.
2. ↑ ( ) - Uncertainty (1σ) is given in concise form in parentheses after the corresponding last digits.
3. ↑ # - Atomic mass marked #: value and uncertainty derived not from purely experimental data, but at least partly from trends from the Mass Surface (TMS).
4. ↑ Bold half-life - nearly stable, half-life longer than age of universe.
5. ↑ 5.0 5.1 5.2 # - Values marked # are not purely derived from experimental data, but at least partly from trends of neighboring nuclides (TNN).
6. ↑ Modes of decay:  EC: | Electron capture

|

IT: | Isomeric transition

p: | Proton emission
7. ↑ Bold symbol as daughter - Daughter product is stable.
8. ↑ ( ) spin value - Indicates spin with weak assignment arguments.
9. ↑ Believed to undergo α decay to 171Tm
10. ↑ primordial radionuclide
11. ↑ Used in lutetium-hafnium dating

## Lutetium-177

Lutetium (177Lu) chloride, sold under the brand name Lumark among others, is used for radiolabeling other medicines, either as an anti-cancer therapy or for scintigraphy (medical radio-imaging). Its most common side effects are anaemia (low red blood cell counts), thrombocytopenia (low blood platelet counts), leucopenia (low white blood cell counts), lymphopenia (low levels of lymphocytes, a particular type of white blood cell), nausea (feeling sick), vomiting and mild and temporary hair loss.[5][6]

## References

1. ↑ Meija, Juris; Coplen, Tyler B.; Berglund, Michael; Brand, Willi A.; De Bièvre, Paul; Gröning, Manfred; Holden, Norman E.; Irrgeher, Johanna et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry 88 (3): 265–91. doi:10.1515/pac-2015-0305.
2. ↑ Belli, P.; Bernabei, R.; Danevich, F. A. et al. (2019). "Experimental searches for rare alpha and beta decays". European Physical Journal A 55 (8): 140–1–140–7. doi:10.1140/epja/i2019-12823-2. ISSN 1434-601X. Bibcode: 2019EPJA...55..140B.
3. ↑ Auranen, K. (16 March 2022). "Nanosecond-Scale Proton Emission from Strongly Oblate-Deformed 149Lu". Physical Review Letters 128 (11): 2501. doi:10.1103/PhysRevLett.128.112501. PMID 35363028. Bibcode: 2022PhRvL.128k2501A. https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.128.112501.
4. ↑ Haak, K.Expression error: Unrecognized word "et". (2023). "Production and discovery of neutron-rich isotopes by fragmentation of 198Pt". Physical Review C 108 (34608): 034608. doi:10.1103/PhysRevC.108.034608. Bibcode: 2023PhRvC.108c4608H.
5. ↑ "Lumark EPAR". 17 September 2018. https://www.ema.europa.eu/en/medicines/human/EPAR/lumark. Text was copied from this source for which copyright belongs to the European Medicines Agency. Reproduction is authorized provided the source is acknowledged.
6. ↑ "EndolucinBeta EPAR". 17 September 2018. https://www.ema.europa.eu/en/medicines/human/EPAR/endolucinbeta. Text was copied from this source for which copyright belongs to the European Medicines Agency. Reproduction is authorized provided the source is acknowledged.

* Isotope masses from:
* Audi, Georges; Bersillon, Olivier; Blachot, Jean; Wapstra, Aaldert Hendrik (2003), "The NUBASE evaluation of nuclear and decay properties", Nuclear Physics A 729: 3–128, doi:10.1016/j.nuclphysa.2003.11.001, Bibcode: 2003NuPhA.729....3A, https://hal.archives-ouvertes.fr/in2p3-00020241/document
* Isotopic compositions and standard atomic masses from:
* Wieser, Michael E. (2006). "Atomic weights of the elements 2005 (IUPAC Technical Report)". Pure and Applied Chemistry 78 (11): 2051–2066. doi:10.1351/pac200678112051.
* Half-life, spin, and isomer data selected from the following sources.
* Audi, Georges; Bersillon, Olivier; Blachot, Jean; Wapstra, Aaldert Hendrik (2003), "The NUBASE evaluation of nuclear and decay properties", Nuclear Physics A 729: 3–128, doi:10.1016/j.nuclphysa.2003.11.001, Bibcode: 2003NuPhA.729....3A, https://hal.archives-ouvertes.fr/in2p3-00020241/document
* National Nuclear Data Center. "NuDat 2.x database". Brookhaven National Laboratory. http://www.nndc.bnl.gov/nudat2/.
* Lide, David R., ed (2004). "11. Table of the Isotopes". CRC Handbook of Chemistry and Physics (85th ed.). Boca Raton, Florida: CRC Press. ISBN 978-0-8493-0485-9.

* v
* t
* e

Isotopes of the chemical elements

| Group | 1 | 2 | 3 |  | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18

|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|

Period | Alkali metals  | Alkaline earth metals  |  |  |  |  |  |  |  |  |  |  |  |  |  | Pnicto­gens  | Chal­co­gens  | Halo­gens  | Noble gases
1 |

Iso's * List

1  |  |

Iso's * List

2 |

Iso's * List

3  |

Iso's * List

4  |  |

Iso's * List

5  |

Iso's * List

6  |

Iso's * List

7  |

Iso's * List

8  |

Iso's * List

9  |

Iso's * List

3 |

Iso's * List

11  |

Iso's * List

12  |  |

Iso's * List

13  |

Iso's * List

14  |

Iso's * List

15  |

Iso's * List

16  |

Iso's * List

17  |

Iso's * List

4 |

Iso's * List

19  |

Iso's * List

20  |

Iso's * List

21  |  |

Iso's * List

22  |

Iso's * List

23  |

Iso's * List

24  |

Iso's * List

25  |

Iso's * List

26  |

Iso's * List

27  |

Iso's * List

28  |

Iso's * List

29  |

Iso's * List

30  |

Iso's * List

31  |

Iso's * List

32  |

Iso's * List

33  |

Iso's * List

34  |

Iso's * List

35  |

Iso's * List

5 |

Iso's * List

37  |

Iso's * List

38  |

Iso's * List

39  |  |

Iso's * List

40  |

Iso's * List

41  |

Iso's * List

42  |

Iso's * List

43  |

Iso's * List

44  |

Iso's * List

45  |

Iso's * List

46  |

Iso's * List

47  |

Iso's * List

48  |

Iso's * List

49  |

Iso's * List

50  |

Iso's * List

51  |

Iso's * List

52  |

Iso's * List

53  |

Iso's * List

6 |

Iso's * List

55  |

Iso's * List

56  |

Iso's * List

57  |  |

Iso's * List

72  |

Iso's * List

73  |

Iso's * List

74  |

Iso's * List

75  |

Iso's * List

76  |

Iso's * List

77  |

Iso's * List

78  |

Iso's * List

79  |

Iso's * List

80  |

Iso's * List

81  |

Iso's * List

82  |

Iso's * List

83  |

Iso's * List

84  |

Iso's * List

85  |

Iso's * List

7 |

Iso's * List

87  |

Iso's * List

88  |

Iso's * List

89  |  |

Iso's * List

104  |

Iso's * List

105  |

Iso's * List

106  |

Iso's * List

107  |

Iso's * List

108  |

Iso's * List

109  |

Iso's * List

110  |

Iso's * List

111  |

Iso's * List

112  |

Iso's * List

113  |

Iso's * List

114  |

Iso's * List

115  |

Iso's * List

116  |

Iso's * List

117  |

Iso's * List

118
|  |  |  |  |

Iso's * List

58  |

Iso's * List

59  |

Iso's * List

60  |

Iso's * List

61  |

Iso's * List

62  |

Iso's * List

63  |

Iso's * List

64  |

Iso's * List

65  |

Iso's * List

66  |

Iso's * List

67  |

Iso's * List

68  |

Iso's * List

69  |

Iso's * List

70  |

Iso's * List

71  |
|  |

Iso's * List

90  |

Iso's * List

91  |

Iso's * List

92  |

Iso's * List

93  |

Iso's * List

94  |

Iso's * List

95  |

Iso's * List

96  |

Iso's * List

97  |

Iso's * List

98  |

Iso's * List

99  |

Iso's * List

100  |

Iso's * List

101  |

Iso's * List

102  |

Iso's * List

103

* Table of nuclides
* Categories: Isotopes
* Tables of nuclides
* Metastable isotopes
* Isotopes by element

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Isotopes of lutetium. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Physics:Isotopes_of_lutetium&oldid=3283052"
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template