99-Es-250
 basic

 element
99-einsteinium-250

  • Atomic Mass: 250.0786540 +- 0.0001070 amu #
  • Excess Mass: 73266.000 +- 100.000 keV #
  • Binding Energy: 1867112.000 +- 100.000 keV #
  • Beta Decay Energy: B- -801.000 +- 101.000 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: (6+)
  • Half life: 8.6 h
  • Mode of decay: Electron capture to Cf-250
    • Branch ratio: >97.00 %
    • Decay energy: 2.100 MeV
  • Mode of decay: Alpha to Bk-246
    • Branch ratio: <3.00 %
    • Decay energy: 6.880 MeV

    Meta state at 0.000 Mev
  • Spin: 1(-)
  • Half life: 2.22 h
  • Mode of decay: Electron capture to Cf-250
    • Branch ratio: >=99.00 %
    • Decay energy: 2.100 MeV
  • Mode of decay: Alpha to Bk-246
    • Branch ratio: <=1.00 %
    • Decay energy: 6.880 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)