61-Pm-136  basic  element

61-promethium-136 Atomic Mass: 135.9234479 +- 0.0002232 amu Excess Mass: -71307.844 +- 207.919 keV Binding Energy: 1121284.188 +- 207.919 keV Beta Decay Energy: B- -4520.000 +- 451.000 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: (+),6- Half life: 107 s Mode of decay: Electron capture to Nd-136 Decay energy: 7.850 MeV Meta state at 0.000 Mev Spin: (2+) Half life: 47 s Mode of decay: Electron capture to Nd-136 Decay energy: 7.850 MeV Possible parent nuclides: Electron capture from Sm-136 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)