element
Information about Radium-204:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:204.006477±0.000194amu #
    Excess Mass (Δ):6.034000±0.181000MeV #
    Binding Energy:1571.669000±0.181000MeV #
"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: 0+
  • Half life: 59 ms ( 0.059 sec., λ = 11.7483 s-1)
  • Mode of decay:
    α
    to
    200
    86
    Rn
      (Q = 7.636 MeV)   Branch ratio: ~100.00 %
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)