100-Fm-253
 basic
 XS graphs

 element
100-fermium-253

  • Atomic Mass: 253.0851763 +- 0.0000053 amu
  • Excess Mass: 79341.163 +- 4.939 keV
  • Binding Energy: 1884468.167 +- 4.951 keV
  • Beta Decay Energy: B- -1960.000 +- 205.000 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: 1/2+
  • Half life: 3.00 d
  • Mode of decay: Electron capture to Es-253
    • Branch ratio: 88.00 %
    • Decay energy: 0.333 MeV
  • Mode of decay: Alpha to Cf-249
    • Branch ratio: 12.00 %
    • Decay energy: 7.197 MeV

  • Possible parent nuclides:
    Alpha from No-257
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)