Isotopes of astatine

Template:Infobox astatine isotopes Astatine (85At) has 41 known isotopes, all of which are radioactive, whose mass numbers range from 188 to 229 except 189; they are accompanied by almost as many metastable excited states. The longest-lived isotope is 210At, which has a half-life of 8.1 hours, followed by the medically useful 211At, with a half-life of 7.214 hours. The longest-lived isomer is 202m1At with a half-life of just over 3 minutes. However, the longest-lived isotope existing in naturally occurring decay chains is 219At with a half-life of only 56 seconds.

## Contents

* 1 List of isotopes
* 2 Alpha decay
* 3 See also
* 4 Notes
* 5 References

## List of isotopes

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

|
|
|
|
|
|
|
|

Excitation energy[n 7]
188At[1] | 85  | 103  |  | 2025 | 190+350
−80 μs | α (~50%)  | 184Bi  |  |
p (~50%)  | 187Po
190At[2] | 85  | 105  |  | 2023 | 1.0+1.4
−0.4 ms | α  | 186Bi  | (10−)  |
191At  | 85  | 106  | 191.004148(17)  | 2003 | 2.1(8) ms  | α  | 187Bi  | 1/2+  |
191mAt  | 58(20) keV  | 2003 | 2.2(4) ms  | α  | 187Bi  | (7/2−)  |
192At  | 85  | 107  | 192.003141(3)  | 2006 | 11.5(6) ms  | α  | 188Bi  | 3+#  |
192mAt[n 8] | 0(40) keV  | 2006 | 88(6) ms  | α  | 188mBi  | (9−, 10−)  |
193At  | 85  | 108  | 192.999928(23)  | 2003 | 29(5) ms  | α  | 189Bi  | 1/2+  |
193m1At[n 8] | 8(9) keV  | 2003 | 21(5) ms  | α  | 189m1Bi  | 7/2−  |
193m2At  | 42(9) keV  | 2003 | 28(4) ms  | IT (76%)  | 193At  | 13/2+  |
α (24%)  | 189m2Bi
194At  | 85  | 109  | 193.999231(25)  | 2009 | 286(7) ms  | α (91.7%#)  | 190Bi  | (5−)  |
β+ (8.3%#)  | 194Po
β+, SF (0.032%#)  | (various)
194mAt[n 8] | −20(40) keV  | 2009 | 323(7) ms  | α (91.7%#)  | 190Bi  | 10−  |
β+ (8.3%#)  | 194Po
β+, SF (0.032%#)  | (various)
195At  | 85  | 110  | 194.996274(10)  | 1999 | 290(20) ms  | α  | 191mBi  | 1/2+  |
β+ ?  | 195Po
195mAt  | 29(7) keV  | 1999 | 143(3) ms  | α (88%)  | 191Bi  | 7/2-  |
IT (12%)  | 195At
β+?  | 195Po
196At  | 85  | 111  | 195.99580(3)  | 1967 | 377(4) ms  | α (97.5%)  | 192Bi  | (3+)  |
β+ (2.5%)  | 196Po
β+, SF (0.009%)  | (various)
196m1At[n 8] | −40(40) keV  | (1996)[n 9] | 20# ms  | α  | 192mBi  | 10−#  |
196m2At  | 157.9(1) keV  | 2000 | 11(2) μs  | IT  | 196At  | (5+)  |
197At  | 85  | 112  | 196.993177(9)  | 1967 | 388.2(56) ms  | α (96.1%)  | 193Bi  | 9/2−  |
β+ (3.9%)  | 197Po
197m1At  | 45(8) keV  | 1986 | 2.0(2) s  | α  | 193m1Bi  | 1/2+  |
IT (<0.004%)  | 197At
β+?  | 197Po
197m2At  | 310.7(2) keV  | 1999 | 1.3(2) μs  | IT  | 197At  | 13/2+  |
198At  | 85  | 113  | 197.992798(5)  | 1967 | 4.47(5) s  | α (97%)  | 194Bi  | 3+  |
β+ (3%)  | 198Po
198mAt  | 266.6(27) keV  | 1967 | 1.23(5) s  | α (93%)  |  | 10−  |
β+ ?  | 198Po
IT ?  | 198Po
199At  | 85  | 114  | 198.990528(6)  | 1967 | 7.02(12) s  | α (89%)  | 195Bi  | 9/2−  |
β+ (11%)  | 199Po
199m1At  | 244.0(10) keV  | 2013 | 273(9) ms  | IT (99%)  |  | 1/2+  |
α (1%)  | 195Bi
199m2At  | 572.9(1) keV  | (2000)[n 10] | 70(20) ns  | IT  |  | 13/2+  |
199m3At  | 2293.4(5) keV  | 2010 | 800(50) ns  | IT  |  | (29/2+)  |
200At  | 85  | 115  | 199.990351(26)  | 1963 | 43.2(9) s  | α (52%)  | 196Bi  | (3+)  |
β+ (48%)  | 200Po
200m1At  | 112.9(29) keV  | 1992 | 47(1) s  | β+ (57%)  | 200Po  | (7+)  |
α (43%)  | 196Bi
IT ?  | 200At
200m2At  | 343.8(30) keV  | 1967 | 8.0(21) s  | IT ?  | 200At  | (10−)  |
α (10.5%)  | 196Bi
β+ ?  | 200Po
201At  | 85  | 116  | 200.988417(9)  | 1963 | 85.2(16) s  | α (71%)  | 197Bi  | 9/2−  |
β+ (29%)  | 201Po
201m1At  | 459(1) keV  | 2014 | 45(3) ms  | IT  |  | 1/2+  |
201m2At  | 459(1) keV  | 2015 | 3.39(9) μs  | IT  |  | 29/2+  |
202At  | 85  | 117  | 201.988626(30)  | 1961 | 184(1) s  | β+ (88%)  | 202Po  | 3+  |
α (12%)  | 198Bi
202m1At  | 190(40) keV  | 1992 | 182(2) s  | β+ (91.5%)  | 202Po  | 7+  |
α (8.5%)  | 198Bi
IT ?  | 202At
202m2At  | 590(40) keV  | 1992 | 460(50) ms  | IT (99.904%)  | 202At  | 10−  |
α (0.096%)  | 198Bi
IT ?  | 202At
203At  | 85  | 118  | 202.986943(11)  | 1951 | 7.4(2) min  | β+ (69%)  | 203Po  | 9/2−  |
α (31%)  | 199Bi
203m1At  | 683.4(3) keV  | 2017 | 3.5(6) ms  | IT  |  | 1/2+  |
203m2At  | 2330.1(4) keV  | 2018 | 9.77(21) μs  | IT  |  | 29/2+  |
204At  | 85  | 119  | 203.987251(24)  | 1961 | 9.12(11) min  | β+ (96.2%)  | 204Po  | 7+  |
α (3.8%)  | 200Bi
204mAt  | 587.30(20) keV  | 1975 | 108(10) ms  | IT  | 204At  | 10−  |
205At  | 85  | 120  | 204.986061(13)  | 1951 | 26.9(8) min  | β+ (90%)  | 205Po  | 9/2−  |
α (10%)  | 201Bi
205mAt  | 2339.64(23) keV  | 1982 | 7.76(14) μs  | IT  | 205At  | 29/2+  |
206At  | 85  | 121  | 205.986646(15)  | 1961 | 30.6(8) min  | β+ (99.1%)  | 206Po  | (6)+  |
α (0.9%)  | 202Bi
206mAt  | 810(2) keV  | 1999 | 813(21) ns  | IT  | 206At  | (10)−  |
207At  | 85  | 122  | 206.985800(13)  | 1951 | 1.81(3) h  | β+ (~90%)  | 207Po  | 9/2−  |
α (~10%)  | 203Bi
207mAt  | 2117.3(6) keV  | 1978 | 108(2) ns  | IT  | 207At  | 25/2+  |
208At  | 85  | 123  | 207.986613(10)  | 1950 | 1.63(3) h  | β+ (99.45%)  | 208Po  | 6+  |
α (0.55%)  | 204Bi
208mAt  | 2276.4(18) keV  | 1984 | 1.5(2) μs  | IT  | 208At  | 16-  |
209At  | 85  | 124  | 208.986169(5)  | 1951 | 5.42(5) h  | β+ (96.1%)  | 209Po  | 9/2−  |
α (3.9%)  | 205Bi
209mAt  | 2429.32(22) keV  | 1975 | 916(10) ns  | IT  | 209At  | 29/2+  |
210At  | 85  | 125  | 209.987147(8)  | 1949 | 8.1(4) h  | β+ (99.825%)  | 210Po  | (5)+  |
α (0.175%)  | 206Bi
210m1At  | 2549.6(2) keV  | 1972 | 482(6) ns  | IT  | 210At  | (15)−  |
210m2At  | 4027.7(2) keV  | 1978 | 5.66(7) μs  | IT  | 210At  | (19)+  |
211At  | 85  | 126  | 210.9874962(29)  | 1940 | 7.214(7) h  | EC (58.2%)  | 211Po  | 9/2−  |
α (41.8%)  | 207Bi
211mAt  | 4814.5(5) keV  | 1971 | 4.23(7) μs  | IT  | 211At  | (39/2-)  |
212At  | 85  | 127  | 211.9907373(26)  | 1954 | 314(3) ms  | α[n 11] | 208Bi  | (1−)  |
212m1At  | 222.9(9) keV  | 1963 | 119(3) ms  | α  | 208Bi  | (9−)  |
212m2At  | 4771.4(15) keV  | 1998 | 152(5) μs  | IT  | 212At  | (25−)  |
213At  | 85  | 128  | 212.992937(5)  | 1968 | 125(6) ns  | α[n 12] | 209Bi | 9/2−  |
213m1At  | 1358(23) keV  | 1980 | 110(17) ns  | IT  | 213At  | 25/2-#  |
213m2At  | 2998(27) keV  | 2013 | 45(4) μs  | IT  | 213At  | 49/2+#  |
214At  | 85  | 129  | 213.996372(4)  | 1949 | 558(10) ns  | α  | 210Bi  | 1−  |
214m1At  | 59(9) keV  | 1982 | 265(30) ns  | α  | 210Bi  |  |
214m2At  | 232(5) keV  | 1982 | 760(15) ns  | α  | 210mBi[5] | 9−  |
215At  | 85  | 130  | 214.998651(7)  | 1944 | 37(3) μs  | α  | 211Bi  | 9/2−  | Trace[n 13]
216At  | 85  | 131  | 216.002423(4)  | 1948 | 300(30) μs  | α[n 14] | 212Bi  | 1−  |
216mAt  | 161(11) keV  | (1971)[n 9] | 100# μs  | α  | 212m1Bi[7] | 9−#  |
217At  | 85  | 132  | 217.004718(5)  | 1947 | 32.6(3) ms  | α (99.992%)  | 213Bi  | 9/2−  | Trace[n 15]
β− (0.008%)  | 217Rn
218At  | 85  | 133  | 218.008696(12)  | 1939 | 1.28(6) s  | α (~100%)  | 214Bi  | (2−,3−)  | Trace[n 16]
β− (?)  | 218Rn
219At  | 85  | 134  | 219.011161(3)  | 1953 | 56(3) s  | α (93.6%)  | 215Bi  | (9/2−)  | Trace[n 13]
β− (6.4%)  | 219Rn
220At  | 85  | 135  | 220.015433(15)  | 1989 | 3.71(4) min  | β− (92%)  | 220Rn  | 3(−#)  |
α (8%)  | 216Bi
221At  | 85  | 136  | 221.018017(15)  | 1989 | 2.3(2) min  | β− | 221Rn  | 3/2−#  |
222At  | 85  | 137  | 222.022494(17)  | 1989 | 54(10) s  | β− | 222Rn  |  |
223At  | 85  | 138  | 223.025151(15)  | 1989 | 50(7) s  | β− | 223Rn  | 3/2−#  |
224At  | 85  | 139  | 224.029749(24)  | 2010 | 2.5 +/- 1.5 min  | β− | 224Rn  | 2+#  |
225At  | 85  | 140  | 225.03253(32)#  | 2010 | 3# s (>300 ns)  | β− ?  | 225Rn  | 1/2+#  |
226At  | 85  | 141  | 226.03721(32)#  | 2010 | 7# min (>300 ns)  | β− ?  | 226Rn  | 2+#  |
227At  | 85  | 142  | 227.04018(32)#  | 2010 | 5# s (>300 ns)  | β− ?  | 227Rn  | 1/2+#  |
228At  | 85  | 143  | 228.04496(43)#  | 2010 | 1# min (>300 ns)  | β− ?  | 228Rn  | 3+#  |
229At  | 85  | 144  | 229.04819(43)#  | 2010 | 1# s (>300 ns)  | β− ?  | 229Rn  | 1/2+#  |
230At  | 85  | 145  |  | [1] |  |  |  |  |

1. ↑ mAt - 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. ↑ Modes of decay:  EC: | Electron capture

|

IT: | Isomeric transition
5. ↑ Bold italics symbol as daughter - Daughter product is nearly stable.
6. ↑ ( ) spin value - Indicates spin with weak assignment arguments.
7. ↑ 7.0 7.1 # - Values marked # are not purely derived from experimental data, but at least partly from trends of neighboring nuclides (TNN).
8. ↑ 8.0 8.1 8.2 8.3 Order of ground state and isomer is uncertain.
9. ↑ 9.0 9.1 Half-life not measured, not included in discovery database
10. ↑ Half-life shorter than 100ns, not included in discovery database
11. ↑ Theoretically capable of β+ decay to 212Po or β− decay to 212Rn; the branching ratios are expected to be <3×10−2% and <2×10−6% (partial half-lives >17.4 min and >182 d) respectively.[3]
12. ↑ Theoretically capable of electron capture to 213Po; the branching ratio is expected to be <2.5×10−12% (partial half-life >57.9 d).[4]
13. ↑ 13.0 13.1 Intermediate decay product of 235U
14. ↑ Theoretically capable of electron capture to 216Po or β− decay to 216Rn; the branching ratios are expected to be <3×10−7% and <6×10−3% (partial half-lives >1.2 d and >5.0 s) respectively.[6]
15. ↑ Intermediate decay product of 237Np
16. ↑ Intermediate decay product of 238U

## Alpha decay

Alpha decay characteristics for astatine isotopes, with all nuclear data from NUBASE2020.[8][lower-alpha 1] Mass number  | Mass excess | Mass excess of daughter  | Energy of alpha decay  | Half-life  | Probability of alpha decay  | Alpha decay half-life

|
|
|
|
|
|

195  | −3.470 MeV | −10.814 MeV | 7.344 MeV | 0.29 s | ~100%  | 0.29 s
196  | −3.910 MeV | −11.105 MeV | 7.195 MeV | 0.377 s | 97.5%  | 0.39 s
197  | −6.355 MeV | −13.460 MeV | 7.105 MeV | 0.388 s | 96.1%  | 0.40 s
198  | −6.709 MeV | −13.598 MeV | 6.889 MeV | 4.47 s | 97%  | 4.6 s
199  | −8.823 MeV | −15.601 MeV | 6.778 MeV | 7.0 s | 89%  | 7.9 s
200  | −8.988 MeV | −15.584 MeV | 6.596 MeV | 43.2 s | 52%  | 83 s
201  | −10.789 MeV | −17.262 MeV | 6.473 MeV | 85.2 s | 71%  | 2.0 min
202  | −10.595 MeV | −16.949 MeV | 6.354 MeV | 184 s | 12%  | 2.6 min
203  | −12.163 MeV | −18.373 MeV | 6.210 MeV | 7.4 min | 31%  | 2.4 min
204  | −11.875 MeV | −17.946 MeV | 6.071 MeV | 9.1 min | 3.8%  | 4.0 h
205  | −12.985 MeV | −19.004 MeV | 6.039 MeV | 26.9 min | 10%  | 4.5 h
206  | −12.439 MeV | −18.326 MeV | 5.887 MeV | 30.6 min | 0.90%  | 2.4 d
207  | −13.227 MeV | −19.100 MeV | 5.873 MeV | 1.81 h | ~10%  | 18 h
208  | −12.470 MeV | −18.221 MeV | 5.751 MeV | 1.63 h | 0.55%  | 12.3 d
209  | −12.884 MeV | −18.641 MeV | 5.757 MeV | 5.42 h | 3.9%  | 5.8 d
210  | −11.972 MeV | −17.603 MeV | 5.631 MeV | 8.1 h | 0.175%  | 193 d
211  | −11.647 MeV | −17.630 MeV | 5.983 MeV | 7.214 h | 41.80%  | 17 h
212  | −8.628 MeV | −16.445 MeV | 7.817 MeV | 0.314 s | %  | 0.31 s
213  | −6.580 MeV | −15.834 MeV | 9.254 MeV | 125 ns | 100%  | 125 ns
214  | −3.379 MeV | −12.367 MeV | 8.988 MeV | 0.56 μs | 100%  | 0.56 μs
215  | −1.257 MeV | −9.434 MeV | 8.177 MeV | 37 μs | 100%  | 37 μs
216  | 2.257 MeV | −5.693 MeV | 7.950 MeV | 0.3 ms | 100%  | 0.3 ms
217  | 4.395 MeV | −2.807 MeV | 7.202 MeV | 32.6 ms | 99.992%  | 33 ms
218  | 8.100 MeV | 1.224 MeV | 6.876 MeV | 1.28 s | ~100%  | 1.28 s
219  | 10.396 MeV | 4.054 MeV | 6.342 MeV | 56 s | 93.6%  | 60 s
220  | 14.376 MeV | 8.299 MeV | 6.077 MeV | 3.71 min | 8%  | 46 min
221  | 16.783 MeV | 11.155 MeV | 5.628 MeV | 2.3 min | experimentally alpha stable | \-

Alpha decay energy follows the same trend as for other heavy elements.[9] The lighter astatine isotopes have quite high decay energies, which become lower as more neutrons are added, reaching a minimum at 125 neutrons (astatine-210), even though 126 (astatine-211) is the magic number. The decay energies increase much more steeply, though, on the next two steps, reaching a high at 128 neutrons where the alpha-decay product would have the magic number of 126. Here this is astatine-213, releasing the highest energy and having the shortest life (125 ns) of all the isotopes. The energy then declines again, and alpha lifetimes increase quickly, no long-lived astatine isotope exists; this happens due to the increasing role of beta decay.[9] This decay mode is especially important for astatine: as early as 1950, it was postulated that the element has no beta-stable isotopes (i.e. ones that do not undergo beta decay at all),[10] though nuclear mass measurements reveal that 215At is in fact beta-stable, as it has the lowest mass of all isobars with A = 215.[8] A beta decay mode has been found for all other astatine isotopes except for 212-216At and their isomers.[8] Among other isotopes, if they do not undergo alpha decay: astatine-210 and the lighter isotopes decay by electron capture or positron emission, 211 by electron capture only, and astatine-217 and heavier isotopes undergo β- decay. Astatine-212, 214, and 216 should be able to decay either way.

## See also

Daughter products other than astatine

* Isotopes of radon
* Isotopes of polonium
* Isotopes of bismuth

## Notes

1. ↑ In the table, under the words "mass excess", the energy equivalents are given rather than the real mass excesses; "mass excess of daughter" stands for the energy equivalent of the mass excess sum of the daughter of the isotope and the alpha particle; "alpha decay half-life" refers to the half-life if decay modes other than alpha are omitted.

## References

1. ↑ Kokkonen, Henna; Auranen, Kalle; Siwach, Pooja; Arumugam, Paramasivan; Briscoe, Andrew D.; Eeckhaudt, Sarah; Ferreira, Lidia S.; Grahn, Tuomas et al. (29 May 2025). "New proton emitter 188At implies an interaction unprecedented in heavy nuclei". Nature Communications 16 (1). doi:10.1038/s41467-025-60259-6. PMID 40442077.
2. ↑ Kokkonen, H.; Auranen, K.; Uusitalo, J.; Eeckhaudt, S.; Grahn, T.; Greenlees, P. T.; Jones, P.; Julin, R. et al. (20 June 2023). "Properties of the new α -decaying isotope At 190". Physical Review C 107 (6). doi:10.1103/PhysRevC.107.064312. http://urn.fi/URN:NBN:fi:jyu-202308254775.
3. ↑ "Adopted Levels for 212At". NNDC Chart of Nuclides. https://www.nndc.bnl.gov/ensnds/212/At/adopted.pdf.
4. ↑ "Adopted Levels for 213At". NNDC Chart of Nuclides. https://www.nndc.bnl.gov/ensnds/213/At/adopted.pdf.
5. ↑ "214At α decay (760 ns)". NNDC Chart of Nuclides. https://www.nndc.bnl.gov/ensnds/210/Bi/a_decay_760_ns.pdf.
6. ↑ "Adopted Levels for 216At". NNDC Chart of Nuclides. https://www.nndc.bnl.gov/ensnds/216/At/adopted.pdf.
7. ↑ "216At α decay: J=9". NNDC Chart of Nuclides. https://www.nndc.bnl.gov/ensnds/212/Bi/a_decay_j_9.pdf.
8. ↑ 8.0 8.1 8.2 Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties". Chinese Physics C 45 (3). doi:10.1088/1674-1137/abddae. https://www-nds.iaea.org/amdc/ame2020/NUBASE2020.pdf.
9. ↑ 9.0 9.1 Lavrukhina & Pozdnyakov 1966, p. 232.
10. ↑ Rankama, Kalervo (1956). Isotope geology (2nd ed.). Pergamon Press. pp. 403. ISBN 978-0-470-70800-2.

* Lavrukhina, Avgusta Konstantinovna; Pozdnyakov, Aleksandr Aleksandrovich (1966) (in Russian). Nauka.

* 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 astatine. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Physics:Isotopes_of_astatine&oldid=4371322"
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template