66-Dy-140
 basic

 element
66-dysprosium-140

  • Atomic Mass: 139.9537900 +- 0.0009700 amu #
  • Excess Mass: -43044.000 +- 904.000 keV #
  • Binding Energy: 1121394.000 +- 904.000 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.