100-Fm-254  basic  element

100-fermium-254 Atomic Mass: 254.0868478 +- 0.0000032 amu Excess Mass: 80898.188 +- 3.001 keV Binding Energy: 1890982.465 +- 3.021 keV Beta Decay Energy: B- -2680.000 +- 100.000 keV # "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. Spin: 0+ Half life: 3.240 h Mode of decay: Alpha to Cf-250 Branch ratio: 99.94 % Decay energy: 7.307 MeV Mode of decay: SF Branch ratio: 0.06 % Possible parent nuclides: Beta from Es-254 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)