99-Es-247
 basic

 element
99-einsteinium-247

  • Atomic Mass: 247.0736500 +- 0.0000330 amu #
  • Excess Mass: 68604.000 +- 30.000 keV #
  • Binding Energy: 1847560.000 +- 30.000 keV #
  • Beta Decay Energy: B- -2952.000 +- 153.000 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: (7/2+)
  • Half life: 4.55 min
  • Mode of decay: Electron capture to Cf-247
    • Branch ratio: ~93.00 %
    • Decay energy: 2.480 MeV
  • Mode of decay: Alpha to Bk-243
    • Branch ratio: ~7.00 %
    • Decay energy: 7.490 MeV

  • Possible parent nuclides:
    Electron capture from Fm-247
    Alpha from Md-251
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)