element
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Information about Mendelevium-258:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 258.098425 | ± | 0.000005 | amu |
| Excess Mass (Δ): | 91.682582 | ± | 0.004765 | MeV |
| Binding Energy: | 1911.701009 | ± | 0.004778 | MeV |
| β- Decay Energy: | 0.209000 | ± | 0.200000 | 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: (1-)
- Half life: 60 min ( 3600 sec., λ = 0.000192541 s-1)
- Mode of decay:
E.C. to
(Q = 1.260 MeV)
Branch ratio: ~100.00 %
Meta state at 0.000 Mev
- Spin: (8-)
60
- Half life: 51.5 days ( 4.4496×10+06 sec., λ = 1.55777×10-07 s-1)
- Mode of decay:
α to
(Q = 7.271 MeV)
- Mode of decay: SF
(Q = 3 7.271 MeV)
Branch ratio: <=0.003 %
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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