element
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Information about Fermium-256:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 256.091767 | ± | 0.000008 | amu |
| Excess Mass (Δ): | 85.479952 | ± | 0.007195 | MeV |
| Binding Energy: | 1902.543347 | ± | 0.007203 | MeV |
| β- Decay Energy: | -2.129614 | ± | 0.052820 | MeV |
"The 1995 update to the atomic mass evaluation" by G.Audi and A.H.Wapstra,
Nuclear Physics A595 vol. 4 p.409-480, December 25, 1995.
Radioactive Decay Data:
- Spin: 0+
- Half life: 157.6 min ( 9456 sec., λ = 7.33024×10-05 s-1)
- Mode of decay: SF
Branch ratio: 91.90 %
- Mode of decay:
α to
(Q = 7.027 MeV)
Branch ratio: 8.10 %
- Possible parent nuclides:
- β- from
- E.C. from
R.R.Kinsey, et al.,The NUDAT/PCNUDAT Program for Nuclear Data,paper submitted to the 9 th International Symposium of Capture-Gamma_raySpectroscopy and Related Topics, Budapest, Hungary, Octover 1996.Data extracted from NUDAT database (Jan. 14/1999)
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