86-Rn-201  basic  element

86-radon-201 Atomic Mass: 200.9955350 +- 0.0002140 amu # Excess Mass: -4159.000 +- 199.000 keV # Binding Energy: 1559212.000 +- 199.000 keV # Beta Decay Energy: B- -7872.000 +- 406.000 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: 7.0 s Mode of decay: Alpha to Po-197 Branch ratio: ~80.00 % Decay energy: 6.860 MeV Mode of decay: EC to At-201 Branch ratio: ~20.00 % Decay energy: 6.600 MeV Meta state at 0.280 Mev Spin: 13/2+) Half life: 3.8 s Mode of decay: Alpha to Po-197 Branch ratio: ~90.00 % Decay energy: 7.140 MeV Mode of decay: EC to At-201 Branch ratio: ~10.00 % Decay energy: 6.880 MeV Mode of decay: IT to Rn-201 Branch ratio: ~0.00 % Decay energy: 0.280 MeV Possible parent nuclides: Alpha from Ra-205 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)