90-Th-211  basic  element

90-thorium-211 Atomic Mass: 211.0148580 +- 0.0004490 amu # Excess Mass: 13840.000 +- 418.000 keV # Binding Energy: 1618798.000 +- 418.000 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: 37 ms Mode of decay: Alpha to Ra-207 Decay energy: 7.940 MeV Mode of decay: EC to Ac-211 Decay energy: 6.700 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)