68-Er-144
 basic

 element
68-erbium-144

  • Atomic Mass: 143.9605900 +- 0.0008600 amu #
  • Excess Mass: -36710.000 +- 801.000 keV #
  • Binding Energy: 1145781.000 +- 801.000 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.