85-At-219  basic  element

85-astatine-219 Atomic Mass: 219.0112965 +- 0.0000875 amu Excess Mass: 10522.600 +- 81.508 keV Binding Energy: 1690597.056 +- 81.508 keV Beta Decay Energy: B- 1696.853 +- 81.468 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: 56 s Mode of decay: Alpha to Bi-215 Branch ratio: ~97.00 % Decay energy: 6.390 MeV Mode of decay: Beta to Rn-219 Branch ratio: ~3.00 % Decay energy: 1.700 MeV Possible parent nuclides: Alpha from Fr-223 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)