element
Information about Protactinium-218:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:218.020008±0.000079amu
    Excess Mass (Δ):18.637242±0.073954MeV
    Binding Energy:1669.716971±0.073954MeV
    β- Decay Energy:-3.241000±0.122000MeV #
"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: 0.12 ms ( 0.00012 sec., λ = 5776.23 s-1)
  • Mode of decay:
    α
    to
    214
    89
    Ac
      (Q = 9.790 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)