94-Pu-228  basic  element

94-plutonium-228 Atomic Mass: 228.0387277 +- 0.0000350 amu Excess Mass: 36074.602 +- 32.593 keV Binding Energy: 1730645.779 +- 32.594 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: ~0.2 s Mode of decay: Alpha to U-224 Decay energy: 7.950 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)