ニホニウム (Nh) 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 |
278Nh | 113 | 165 | | 0.344ms | | | |
282Nh | 113 | 169 | | 73ms | | | |
283Nh | 113 | 170 | 283.17645(78)# | 100(+490-45)ms | | | |
284Nh | 113 | 171 | 284.17808(86)# | 0.48(+58-17)s | | | |
285Nh | 113 | 172 | 285.17873(105)# | 2#min | | | |
286Nh | 113 | 173 | 286.18048(101)# | 5#min | | | |
287Nh | 113 | 174 | 287.18105(90)# | 20#min | | | |
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.