71-Lu-157  basic  element

71-lutetium-157 Atomic Mass: 156.9501015 +- 0.0000235 amu Excess Mass: -46480.113 +- 21.887 keV Binding Energy: 1258130.702 +- 21.888 keV Beta Decay Energy: B- -7476.000 +- 303.000 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: 2+,3/2+) Half life: 6.8 s Mode of decay: Alpha to Tm-153 Branch ratio: >0.00 % Decay energy: 5.096 MeV Meta state at 0.026 Mev Spin: 11/2-) Half life: 4.79 s Mode of decay: Electron capture to Yb-157 Branch ratio: 94.00 % Decay energy: 6.956 MeV Mode of decay: Alpha to Tm-153 Branch ratio: 6.00 % Decay energy: 5.122 MeV Possible parent nuclides: Alpha from Ta-161 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)