69-Tm-153  basic  element

69-thulium-153 Atomic Mass: 152.9420276 +- 0.0000233 amu Excess Mass: -54000.905 +- 21.673 keV Binding Energy: 1234930.910 +- 21.674 keV Beta Decay Energy: B- -6690.000 +- 299.000 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: 11/2-) Half life: 1.48 s Mode of decay: Alpha to Ho-149 Branch ratio: 91.00 % Decay energy: 5.248 MeV Mode of decay: Electron capture to Er-153 Branch ratio: 9.00 % Decay energy: 6.459 MeV Meta state at 0.043 Mev Spin: (1/2+) Half life: 2.5 s Mode of decay: Alpha to Ho-149 Branch ratio: 92.00 % Decay energy: 5.291 MeV Mode of decay: Electron capture to Er-153 Branch ratio: 8.00 % Decay energy: 6.502 MeV Possible parent nuclides: Electron capture from Yb-153 Alpha from Lu-157 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)