87-Fr-202  basic  element

87-francium-202 Atomic Mass: 202.0032870 +- 0.0004590 amu # Excess Mass: 3062.000 +- 428.000 keV # Binding Energy: 1559281.000 +- 428.000 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: 0.34 s Mode of decay: Alpha to At-198 Branch ratio: ~97.00 % Decay energy: 7.389 MeV Mode of decay: EC to Rn-202 Branch ratio: ~3.00 % Decay energy: 9.400 MeV Meta state at 0.102 Mev Spin: (10-) Half life: 0.34 s Mode of decay: Alpha to At-198 Branch ratio: ~97.00 % Decay energy: 7.491 MeV Mode of decay: EC to Rn-202 Branch ratio: ~3.00 % Decay energy: 9.502 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)