89-Ac-211  basic  element

89-actinium-211 Atomic Mass: 211.0076482 +- 0.0001351 amu Excess Mass: 7124.247 +- 125.858 keV Binding Energy: 1626295.412 +- 125.858 keV Beta Decay Energy: B- -6716.000 +- 437.000 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: 0.25 s Mode of decay: Alpha to Fr-207 Branch ratio: ~100.00 % Decay energy: 7.620 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)