84-Po-215  basic  element

84-polonium-215 Atomic Mass: 214.9994146 +- 0.0000031 amu Excess Mass: -545.288 +- 2.854 keV Binding Energy: 1670162.006 +- 2.869 keV Beta Decay Energy: B- 720.384 +- 6.923 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: 9/2+ Half life: 1.781 ms Mode of decay: Alpha to Pb-211 Decay energy: 7.526 MeV Mode of decay: Beta to At-215 Branch ratio: 0.00023 % Decay energy: 0.721 MeV Possible parent nuclides: Beta from Bi-215 Alpha from Rn-219 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)