89-Ac-222  basic  element

89-actinium-222 Atomic Mass: 222.0178289 +- 0.0000062 amu Excess Mass: 16607.466 +- 5.818 keV Binding Energy: 1705596.745 +- 5.826 keV Beta Decay Energy: B- -582.444 +- 13.550 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- Half life: 5.0 s Mode of decay: Alpha to Fr-218 Branch ratio: 99.00 % Decay energy: 7.137 MeV Mode of decay: EC to Ra-222 Branch ratio: 1.00 % Decay energy: 2.298 MeV Meta state at 0.000 Mev Half life: 63 s Mode of decay: Alpha to Fr-218 Branch ratio: >=88.00 % Decay energy: 7.137 MeV Mode of decay: IT to Ac-222 Branch ratio: <=10.00 % Mode of decay: EC to Ra-222 Branch ratio: >=0.70 % Decay energy: 2.298 MeV Possible parent nuclides: Alpha from Pa-226 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)