73-Ta-156  basic  element

73-tantalum-156 Atomic Mass: 155.9716890 +- 0.0006400 amu # Excess Mass: -26371.000 +- 596.000 keV # Binding Energy: 1228386.000 +- 596.000 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-) Half life: 144 ms Mode of decay: Electron capture to Hf-156 Branch ratio: 95.80 % Decay energy: 11.600 MeV Mode of decay: Proton emission to Hf-155 Branch ratio: 4.20 % Decay energy: 1.029 MeV 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)