70-Yb-181  basic  element

70-ytterbium-181 Atomic Mass: 180.9561500 +- 0.0004300 amu # Excess Mass: -40846.000 +- 401.000 keV # Binding Energy: 1446991.000 +- 401.000 keV # Beta Decay Energy: B- 3894.000 +- 499.000 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.