81-Tl-185  basic  element

81-thallium-185 Atomic Mass: 184.9791000 +- 0.0004300 amu # Excess Mass: -19468.000 +- 401.000 keV # Binding Energy: 1449292.000 +- 401.000 keV # Beta Decay Energy: B- -7899.000 +- 505.000 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: (1/2+) Half life: 19.5 s Mode of decay: EC to Hg-185 Decay energy: 6.600 MeV Meta state at 0.454 Mev Spin: (9/2-) Half life: 1.83 s Mode of decay: Alpha to Au-181 Decay energy: 6.554 MeV Mode of decay: IT Decay energy: 0.454 MeV Possible parent nuclides: Alpha from Bi-189 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)