104-Rf-261  basic  element

104-rutherfordium-261 Atomic Mass: 261.1087520 +- 0.0001140 amu # Excess Mass: 101302.000 +- 107.000 keV # Binding Energy: 1923949.000 +- 107.000 keV # Beta Decay Energy: B- -3125.000 +- 255.000 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. Half life: 65 s Mode of decay: Alpha to No-257 Branch ratio: >80.00 % Decay energy: 8.810 MeV Mode of decay: EC to Lr-261 Branch ratio: <=10.00 % Decay energy: 1.800 MeV Mode of decay: SF Branch ratio: <10.00 % 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)