61-Pm-163  basic  fission yield  element

61-promethium-163 Atomic Mass: 162.9535200 +- 0.0009700 amu # Excess Mass: -43296.000 +- 904.000 keV # Binding Energy: 1311198.000 +- 904.000 keV # Beta Decay Energy: B- 7601.000 +- 1142.000 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.