element
Information about Einsteinium-247:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:247.073650±0.000033amu #
    Excess Mass (Δ):68.604000±0.030000MeV #
    Binding Energy:1847.560000±0.030000MeV #
    β- Decay Energy:-2.952000±0.153000MeV #
"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: (7/2+)
  • Half life: 4.55 min ( 273 sec., λ = 0.002539 s-1)
  • Mode of decay:
    E.C.
    to
    247
    98
    Cf
      (Q = 2.480 MeV)   Branch ratio: ~93.00 %
  • Mode of decay:
    α
    to
    243
    97
    Bk
      (Q = 7.490 MeV)   Branch ratio: ~7.00 %

  • Possible parent nuclides:
    E.C. from
    247
    100
    Fm
    α from
    251
    101
    Md
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)