86-Rn-199  basic  element

86-radon-199 Atomic Mass: 198.9983090 +- 0.0002420 amu # Excess Mass: -1575.000 +- 226.000 keV # Binding Energy: 1540486.000 +- 226.000 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: 0.62 s Mode of decay: Alpha to Po-195 Branch ratio: 94.00 % Decay energy: 7.140 MeV Mode of decay: EC to At-199 Branch ratio: 6.00 % Decay energy: 7.200 MeV Meta state at 0.000 Mev Spin: 13/2+) Half life: 0.32 s Mode of decay: Alpha to Po-195 Branch ratio: 97.00 % Decay energy: 7.140 MeV Mode of decay: EC to At-199 Branch ratio: 3.00 % Decay energy: 7.200 MeV Possible parent nuclides: Alpha from Ra-203 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)