84-Po-218  basic  element

84-polonium-218 Atomic Mass: 218.0089658 +- 0.0000027 amu Excess Mass: 8351.563 +- 2.532 keV Binding Energy: 1685479.123 +- 2.549 keV Beta Decay Energy: B- 264.838 +- 11.719 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: 3.10 min Mode of decay: Alpha to Pb-214 Branch ratio: 99.98 % Decay energy: 6.115 MeV Mode of decay: Beta to At-218 Branch ratio: 0.02 % Decay energy: 0.265 MeV Possible parent nuclides: Alpha from Rn-222 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)