Talk:Isotopes of americium
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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 95 136 A |Am-231 |30# s | 95 136 B |Am-231 |~10 s | 95 137 A |Am-232 |1.31(4) min | 95 137 B |Am-232 |79(2) s | 95 137 C |Am-232 |0.9 min | 95 138 AB |Am-233 |3.2(8) min | 95 138 C |Am-233 |~3.2 min | 95 139 ABC |Am-234 |2.32(8) min | 95 140 A |Am-235 |9.9(5) min |5/2-# 95 140 B |Am-235 |10.3(6) min | 95 140 C |Am-235 |~15 min | 95 141 A |Am-236 |30# min | 95 141 B |Am-236 |3.6(1) min | 95 141 C |Am-236 |54. s | 95 142 AB |Am-237 |73.0(10) min |5/2(-) 95 142 C |Am-237 |1.22 h |(5/2-) 95 143 ABC |Am-238 |98(2) min |1+ 95 143 A |Am-238m |35(10) µs | |2500(200)# keV 95 143 D |Am-238m |35 µs | |~2500 keV 95 144 AB |Am-239 |11.9(1) h |(5/2)- 95 144 C |Am-239 |11.9 h |5/2- 95 144 AD |Am-239m |163(12) ns |(7/2+) |2500(200) keV 95 145 ABC |Am-240 |50.8(3) h |(3-) 95 146 AB |Am-241 |432.2(7) a |5/2- 95 146 C |Am-241 |432.7 a |5/2- 95 146 A |Am-241m |1.5 µs | |2200(100) keV 95 146 D |Am-241m |1.2(3) µs | |~2200 keV 95 147 ABC |Am-242 |16.02(2) h |1- 95 147 AE |Am-242m1|141(2) a |5- |48.60(5) keV 95 147 C |Am-242m1|141. a |5- 95 147 AE |Am-242m2|14.0(10) ms |(2+,3-) |2200(80) keV 95 148 A |Am-243 |7.37(4)E+3 a |5/2- 95 148 B |Am-243 |7370(40) a |5/2- 95 148 C |Am-243 |7.37E+3 a |5/2- 95 149 AB |Am-244 |10.1(1) h |(6-)# 95 149 C |Am-244 |10.1 h | 95 149 A |Am-244m |26(1) min |1+ |88.6(17) keV 95 149 E |Am-244m |26(1) min |1+ |86.1(10) keV 95 149 C |Am-244m |~26. min |(1-) 95 149 E |Am-244m |0.90(15) ms | |0+X keV 95 149 D |Am-244m |~6.5 µs | |0+Y keV 95 150 AB |Am-245 |2.05(1) h |(5/2)+ 95 150 C |Am-245 |2.05 h |(5/2+) 95 151 ABC |Am-246 |39(3) min |(7-) 95 151 A |Am-246m1|25.0(2) min |2(-) |30(10) keV 95 151 E |Am-246m1|25.0(2) min |2(-) |0+X keV 95 151 C |Am-246m1|25.0 min |2- 95 151 D |Am-246m2|73(10) µs | |~2000 keV 95 152 AB |Am-247 |23.0(13) min |(5/2)# 95 152 C |Am-247 |22. min | 95 153 A |Am-248 |3# min | 95 153 B |Am-248 |~10 min | 95 154 A |Am-249 |1# min | 95 154 B |Am-249 |~2 min |
Femto 11:24, 17 November 2005 (UTC)
