107-Bh-267
 basic

 element
107-bohrium-267

  • Atomic Mass: 267.1277400 +- 0.0003690 amu #
  • Excess Mass: 118989.000 +- 344.000 keV #
  • Binding Energy: 1952342.000 +- 344.000 keV #
  • Beta Decay Energy: B- -3758.000 +- 359.000 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.