68-Er-177
 basic

 element
68-erbium-177

  • Atomic Mass: 176.9543700 +- 0.0006400 amu #
  • Excess Mass: -42504.000 +- 596.000 keV #
  • Binding Energy: 1417928.000 +- 596.000 keV #
  • Beta Decay Energy: B- 4965.000 +- 667.000 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.