This is an archive of past discussions about Isotopes of astatine. Do not edit the contents of this page. If you wish to start a new discussion or revive an old one, please do so on the current talk page.
This article is part of Wikipedia:Wikiproject Isotopes. Please keep style and phrasings consistent across the set of pages. For later reference and improved reliability, data from all considered multiple sources is collected here. References are denoted by these letters:
(A) G. Audi, O. Bersillon, J. Blachot, A.H. Wapstra. The Nubase2003 evaluation of nuclear and decay properties, Nuc. Phys. A 729, pp. 3-128 (2003). — Where this source indicates a speculative value, the # mark is also applied to values with weak assignment arguments from other sources, if grouped together. An asterisk after the A means that a comment of some importance may be available in the original.
(B) National Nuclear Data Center, Brookhaven National Laboratory, information extracted from the NuDat 2.1 database. (Retrieved Sept. 2005, from the code of the popup boxes).
(C) David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes. — The CRC uses rounded numbers with implied uncertainties, where this concurs with the range of another source it is treated as exactly equal in this comparison.
(D) More specific level data from reference B's Levels and Gammas database.
(E) Same as B but excitation energy replaced with that from D.
Z N refs symbol half-life spin excitation energy
85 106 B |At-191 |1.7(+11-5) ms |(1/2+)
85 106 B |At-191m |2.1(+4-3) ms |(7/2-) |0 MeV
85 108 A |At-193 |~40 ms |9/2-#
85 108 B |At-193 |28(+5-4) ms |(1/2+)
85 108 C |At-193 |40 ms |
85 108 B |At-193m |21(5) ms |(7/2-) |0.0050 MeV
85 108 B |At-193m |27(+4-5) ms |(13/2+) |0.0390 MeV
85 109 A |At-194 |~40 ms |3+#
85 109 B |At-194 |~40 ms |
85 109 C |At-194 |40 ms |
85 109 A |At-194m |~250 ms |10-# |480(190) keV
85 109 D |At-194m |~40 ms | |0+X keV
85 109 D |At-194m |~250 ms | |0+Y keV
85 110 A |At-195 |328(20) ms |(1/2+)
85 110 B |At-195 |328(+20) ms |(1/2+)
85 110 C |At-195 |140 ms |
85 110 A |At-195m |147(5) ms |9/2-# |34(7) keV
85 110 B |At-195m |147(+5) ms |(7/2-) |0.0370 MeV
85 110 D |At-195m |146(+21-17) ms |(9/2-) |0 keV
85 110 D |At-195m |0.39(+7-5) s | |0+X keV
85 110 C |At-195m |0.39 s |
85 111 A |At-196 |253(9) ms |3+#
85 111 BC |At-196 |0.39(5) s |
85 111 A |At-196m1|20# ms |10-# |-30(80) keV
85 111 A |At-196m2|11 µs |5+# |157.9(1) keV
85 111 C |At-196m2|8 µs |
85 112 AC |At-197 |350(40) ms |(9/2-)
85 112 B |At-197 |0.390(16) s |(9/2-)
85 112 A |At-197m |3.7(25) s |(1/2+) |50(50) keV
85 112 E |At-197m |2.0(2) s |(1/2+) |52(10) keV
85 112 C |At-197m |4. s |(1/2+)
85 113 AB |At-198 |4.2(3) s |(3+)
85 113 C |At-198 |5. s |
85 113 A |At-198m |1.0(2) s |(10-) |330(90)# keV
85 113 E |At-198m |1.0(2) s |(10-) |102+X keV
85 113 C |At-198m |1.5 s |
85 114 A |At-199 |7.2(5) s |(9/2-)
85 114 B |At-199 |6.92(13) s |(9/2-)
85 114 C |At-199 |7.1 s |9/2-
85 115 A |At-200 |43.2(9) s |(3+)
85 115 B |At-200 |43(1) s |(3+)
85 115 C |At-200 |43. s |5+
85 115 A |At-200m1|47(1) s |(7+) |112.7(30) keV
85 115 E |At-200m1|47(1) s |(7+) |104(4) keV
85 115 A |At-200m2|3.5(2) s |(10-) |344(3) keV
85 115 E |At-200m2|3.5(2) s |(10-) |335(4) keV
85 115 C |At-200m1|4.3 s |10-
85 116 A |At-201 |85(3) s |(9/2-)
85 116 B |At-201 |89(3) s |(9/2-)
85 116 C |At-201 |1.48 s |9/2-
85 117 AB |At-202 |184(1) s |(2,3)+
85 117 C |At-202 |3.02 min |5+
85 117 A |At-202m1|182(2) s |(7+) |190(40) keV
85 117 E |At-202m1|182(2) s |(7+) |X keV
85 117 A |At-202m2|460(50) ms |(10-) |580(40) keV
85 117 E |At-202m2|0.46(5) s |(10-) |391.7(2)+X keV
85 117 C |At-202m |<=1.5 s |
85 118 AC |At-203 |7.4(2) min |9/2-
85 118 B |At-203 |7.37(13) min |9/2-
85 119 AB |At-204 |9.2(2) min |7+
85 119 C |At-204 |9.1 min |(5+)
85 119 AE |At-204m |108(10) ms |(10-) |587.30(20) keV
85 120 A |At-205 |26.2(5) min |9/2-
85 120 B |At-205 |26.9(8) min |9/2-
85 120 C |At-205 |26. min |(9/2-)
85 120 A |At-205m |7.8 µs |29/2+ |2339.60(25) keV
85 120 D |At-205m |7.76(14) µs |29/2+ |2339.65(23) keV
85 121 AB |At-206 |30.6(13) min |(5)+
85 121 C |At-206 |29.4 min |5+
85 121 A |At-206m |410(80) ns |(10)- |807(3) keV
85 122 AB |At-207 |1.80(4) h |9/2-
85 122 C |At-207 |1.81 h |9/2-
85 123 AB |At-208 |1.63(3) h |6+
85 123 C |At-208 |1.63 h |(6+)
85 124 AB |At-209 |5.41(5) h |9/2-
85 124 C |At-209 |5.4 h |(6+)
85 125 AB |At-210 |8.1(4) h |(5)+
85 125 C |At-210 |8.1 h |5+
85 125 AD |At-210m1|482(6) µs |(15)- |2549.6(2) keV
85 125 AD |At-210m2|5.66(7) µs |(19)+ |4027.7(2) keV
85 126 ABC |At-211 |7.214(7) h |9/2-
85 127 ABC |At-212 |0.314(2) s |(1-)
85 127 A |At-212m1|119(3) ms |(9-) |226(9) keV
85 127 E |At-212m1|0.119(3) s |(9-) |223(7) keV
85 127 C |At-212m1|0.119 s |(9-)
85 127 A |At-212m2|152(5) µs |(25-) |4772(3) keV
85 127 D |At-212m2|152(5) µs |(25-) |4771.6(11) keV
85 128 AB |At-213 |125(6) ns |9/2-
85 128 C |At-213 |0.11 µs |9/2-
85 129 AB |At-214 |558(10) ns |1-
85 129 C |At-214 |0.56 µs |(1-)
85 129 A |At-214m1|268 ns | |59(9) keV
85 129 D |At-214m1|265(30) ns | |59(9) keV
85 129 A |At-214m2|760 ns |9- |234(6) keV
85 129 D |At-214m2|760(15) ns |9- |231(6) keV
85 129 C |At-214m2|0.76 µs |(9-)
85 130 AB |At-215 |0.10(2) ms |9/2-
85 130 C |At-215 |0.10 ms |(9/2-)
85 131 A |At-216 |300(30) µs |1(-)
85 131 B |At-216 |0.30(3) ms |1-
85 131 C |At-216 |0.30 ms |(1-)
85 131 A |At-216m |100# µs |(9-) |413(5) keV
85 131 D |At-216m |0.1# ms |(9-) |413 keV
85 132 AB |At-217 |32.3(4) ms |9/2-
85 132 C |At-217 |32. ms |(9/2-)
85 133 A |At-218 |1.5(3) s |1-#
85 133 B |At-218 |1.5(3) s |
85 133 C |At-218 |1.6 s |
85 134 A |At-219 |56(3) s |5/2-#
85 134 B |At-219 |56(3) s |
85 134 C |At-219 |50. s |
85 135 A |At-220 |3.71(4) min |3(-#)
85 135 B |At-220 |3.71(4) min |3
85 135 C |At-220 |3.71 min |
85 136 A |At-221 |2.3(2) min |3/2-#
85 136 BC |At-221 |2.3(2) min |
85 137 ABC |At-222 |54(10) s |
85 138 A |At-223 |50(7) s |3/2-#
85 138 B |At-223 |50(7) s |
85 138 C |At-223 |50. s |
