99-Es-241
 basic

 element
99-einsteinium-241

  • Atomic Mass: 241.0686620 +- 0.0003200 amu #
  • Excess Mass: 63959.000 +- 298.000 keV #
  • Binding Energy: 1803777.000 +- 298.000 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.
  • Spin: (3/2-)
  • Half life: 8 s
  • Mode of decay: Alpha to Bk-237
    • Decay energy: 8.320 MeV
R.R.Kinsey, et al.,The NUDAT/PCNUDAT Program for Nuclear Data,paper submitted to the 9 th International Symposium of Capture-Gamma_raySpectroscopy and Related Topics, Budapest, Hungary, Octover 1996.Data extracted from NUDAT database (Jan. 14/1999)