41-Nb-81  basic  element

41-niobium-81 Atomic Mass: 80.9490500 +- 0.0004300 amu # Excess Mass: -47460.000 +- 401.000 keV # Binding Energy: 669160.000 +- 401.000 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. Half life: Unknown 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)