89-Ac-210  basic  element

89-actinium-210 Atomic Mass: 210.0092568 +- 0.0002007 amu Excess Mass: 8622.654 +- 186.956 keV Binding Energy: 1616725.683 +- 186.956 keV Beta Decay Energy: B- -5378.000 +- 242.000 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: 0.35 s Mode of decay: Alpha to Fr-206 Branch ratio: ~96.00 % Decay energy: 7.610 MeV Mode of decay: EC to Ra-210 Branch ratio: ~4.00 % Decay energy: 8.200 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)