85-At-220  basic  element

85-astatine-220 Atomic Mass: 220.0153010 +- 0.0001200 amu # Excess Mass: 14253.000 +- 112.000 keV # Binding Energy: 1694938.000 +- 112.000 keV # Beta Decay Energy: B- 3649.000 +- 112.000 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. Spin: 3 Half life: 3.71 min Mode of decay: Beta to Rn-220 Branch ratio: 92.00 % Decay energy: 3.650 MeV Mode of decay: Alpha to Bi-216 Branch ratio: 8.00 % Decay energy: 6.050 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)