102-No-255  basic  element

102-nobelium-255 Atomic Mass: 255.0932324 +- 0.0000127 amu Excess Mass: 86845.454 +- 11.836 keV Binding Energy: 1891541.815 +- 11.841 keV Beta Decay Energy: B- -3295.000 +- 207.000 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: (1/2+) Half life: 3.1 min Mode of decay: Alpha to Fm-251 Branch ratio: 61.40 % Decay energy: 8.445 MeV Mode of decay: Electron capture to Md-255 Branch ratio: 38.60 % Decay energy: 2.012 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)