81-Tl-186  basic  element

81-thallium-186 Atomic Mass: 185.9785480 +- 0.0003920 amu # Excess Mass: -19982.000 +- 365.000 keV # Binding Energy: 1457878.000 +- 365.000 keV # Beta Decay Energy: B- -5359.000 +- 304.000 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: (7+) Half life: 27.5 s Mode of decay: Electron capture to Hg-186 Decay energy: 8.500 MeV Mode of decay: Alpha to Au-182 Branch ratio: ~0.0060 % Decay energy: 5.890 MeV Meta state at 0.374 Mev Spin: (10-) Half life: 2.9 s Mode of decay: IT Decay energy: 0.374 MeV Possible parent nuclides: Alpha from Bi-190 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)