65-Tb-140  basic  element

65-terbium-140 Atomic Mass: 139.9455400 +- 0.0009620 amu # Excess Mass: -50729.000 +- 896.000 keV # Binding Energy: 1129862.000 +- 896.000 keV # Beta Decay Energy: B- -7685.000 +- 1272.000 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: 5 Half life: 2.4 s Mode of decay: Electron capture to Gd-140 Decay energy: 10.800 MeV Mode of decay: Proton emission to Gd-139 Branch ratio: 0.26 % Decay energy: -0.300 MeV Mode of decay: EC + Proton to Eu-139 Branch ratio: 0.26 % Decay energy: 7.300 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)