コペルニシウム (Cn, copernicium) は、安定同位体を持たないため標準原子量は定められない。
一覧
| 同位体核種 | Z(p) | N(n) | 同位体質量 (u) | 半減期 | 核スピン数 | 天然存在比 | 天然存在比
(範囲) |
| 励起エネルギー |
| 277Cn | 112 | 165 | 277.16394(14)# | 1.1(7) ms [0.69(+69-24) ms] | 3/2+# | | |
| 278Cn | 112 | 166 | 278.16431(57)# | 10# ms | 0+ | | |
| 279Cn | 112 | 167 | 279.16655(53)# | 0.1# s | | | |
| 280Cn | 112 | 168 | 280.16704(69)# | 1# s | 0+ | | |
| 281Cn | 112 | 169 | 281.16929(106)# | 10# s | 3/2+# | | |
| 282Cn | 112 | 170 | 282.16977(76)# | 30# s | 0+ | | |
| 283Cn | 112 | 171 | 283.17179(83)# | 4.2(2.1) min | | | |
| 284Cn | 112 | 172 | 284.17238(91)# | 31(18) s | 0+ | | |
| 285Cn | 112 | 173 | 285.17411(78)# | 40(30) min | 5/2+# | | |
参考文献
- Isotope masses from Ame2003 Atomic Mass Evaluation by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
- Isotopic compositions and standard atomic masses from Atomic weights of the elements. Review 2000 (IUPAC Technical Report). Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and Atomic Weights Revised (2005).
- Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.
- Audi, Bersillon, Blachot, Wapstra. The Nubase2003 evaluation of nuclear and decay properties, Nuc. Phys. A 729, pp. 3-128 (2003).
- National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database (retrieved Sept. 2005).
- 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.
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