element
Information about Einsteinium-243:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:243.069631±0.000309amu #
    Excess Mass (Δ):64.861000±0.288000MeV #
    Binding Energy:1819.018000±0.288000MeV #
    β- Decay Energy:-4.545000±0.372000MeV #
"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:

  • Half life: 21 s ( 21 sec., λ = 0.033007 s-1)
  • Mode of decay:
    E.C.
    to
    243
    98
    Cf
      (Q = 4.000 MeV)   Branch ratio: <=70.00 %
  • Mode of decay:
    α
    to
    239
    97
    Bk
      (Q = 8.072 MeV)   Branch ratio: >=30.00 %

  • Possible parent nuclides:
    α from
    247
    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)