81-Tl-210  basic  element

81-thallium-210 Atomic Mass: 209.9900656 +- 0.0000123 amu Excess Mass: -9253.857 +- 11.465 keV Binding Energy: 1640861.021 +- 11.469 keV Beta Decay Energy: B- 5488.776 +- 11.220 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: (5+) Half life: 1.30 min Mode of decay: Beta to Pb-210 Decay energy: 5.484 MeV Mode of decay: Beta + Neutron to Pb-209 Branch ratio: 0.0070 % Decay energy: 0.299 MeV Possible parent nuclides: Alpha from Bi-214 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)