104-Rf-256  basic  element

104-rutherfordium-256 Atomic Mass: 256.1011796 +- 0.0000287 amu Excess Mass: 94248.151 +- 26.734 keV Binding Energy: 1890645.734 +- 26.736 keV Beta Decay Energy: B- -6456.000 +- 360.000 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: 6.7 ms Mode of decay: SF Branch ratio: 98.00 % Mode of decay: Alpha to No-252 Branch ratio: 2.20 % Decay energy: 8.952 MeV 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)