69-Tm-154  basic  element

69-thulium-154 Atomic Mass: 153.9414240 +- 0.0001200 amu # Excess Mass: -54564.000 +- 112.000 keV # Binding Energy: 1243565.000 +- 112.000 keV # Beta Decay Energy: B- -4488.701 +- 52.236 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: 8.1 s Mode of decay: Electron capture to Er-154 Branch ratio: 56.00 % Decay energy: 8.050 MeV Mode of decay: Alpha to Ho-150 Branch ratio: 44.00 % Decay energy: 5.090 MeV Meta state at 0.000 Mev Spin: (9+) Half life: 3.30 s Mode of decay: Alpha to Ho-150 Branch ratio: 90.00 % Decay energy: 5.090 MeV Mode of decay: Electron capture to Er-154 Branch ratio: 10.00 % Decay energy: 8.050 MeV Mode of decay: IT to Tm-154 Possible parent nuclides: Electron capture from Yb-154 Alpha from Lu-158 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)