100-Fm-256
 basic

 element
100-fermium-256

  • Atomic Mass: 256.0917665 +- 0.0000077 amu
  • Excess Mass: 85479.952 +- 7.195 keV
  • Binding Energy: 1902543.347 +- 7.203 keV
  • Beta Decay Energy: B- -2129.614 +- 52.820 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: 0+
  • Half life: 157.6 min
  • Mode of decay: SF
    • Branch ratio: 91.90 %
  • Mode of decay: Alpha to Cf-252
    • Branch ratio: 8.10 %
    • Decay energy: 7.027 MeV

  • Possible parent nuclides:
    Beta from Es-256
    Electron capture from Md-256
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)