element
Information about Einsteinium-256:

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    Mass-Energy Data:

    Atomic Mass:256.093592±0.000108amu #
    Excess Mass (Δ):87.180000±0.100000MeV #
    Binding Energy:1901.626000±0.100000MeV #
    β- Decay Energy:1.700000±0.100000MeV #
"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.
Radioactive Decay Data:

  • Spin: (1+)
  • Half life: 25.4 min ( 1524 sec., λ = 0.000454821 s-1)
  • Mode of decay:
    β-
    to
    256
    100
    Fm
      (Q = 1.670 MeV)
    Meta state at 0.000 Mev
  • Spin: (8+) 5.4
  • Half life: 7.6 h ( 27360 sec., λ = 2.53343×10-05 s-1)
  • Mode of decay:
    β-
    to
    256
    100
    Fm
      (Q = 1.670 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)