68-Er-149  basic  element

68-erbium-149 Atomic Mass: 148.9421740 +- 0.0005060 amu # Excess Mass: -53864.000 +- 471.000 keV # Binding Energy: 1203291.000 +- 471.000 keV # Beta Decay Energy: B- -9758.000 +- 760.000 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: (1/2+) Half life: 4 s Mode of decay: Electron capture to Ho-149 Decay energy: 7.700 MeV Mode of decay: EC + Proton to Dy-148 Branch ratio: 7.00 % Decay energy: 6.700 MeV Meta state at 0.742 Mev Spin: 11/2-) Half life: 8.9 s Mode of decay: Electron capture to Ho-149 Branch ratio: 96.50 % Decay energy: 8.442 MeV Mode of decay: IT Branch ratio: 3.50 % Decay energy: 0.742 MeV Mode of decay: EC + Proton to Dy-148 Branch ratio: 0.18 % Decay energy: 7.442 MeV Possible parent nuclides: Electron capture from Tm-149 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)