88-Ra-203  basic  element

88-radium-203 Atomic Mass: 203.0092100 +- 0.0002480 amu # Excess Mass: 8579.000 +- 231.000 keV # Binding Energy: 1561052.000 +- 231.000 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: (3/2-) Half life: 1.0 ms Mode of decay: Alpha to Rn-199 Branch ratio: ~100.00 % Decay energy: 7.730 MeV Meta state at 0.000 Mev Spin: 13/2+) Half life: 33 ms Mode of decay: Alpha to Rn-199 Branch ratio: ~100.00 % Decay energy: 7.730 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)