element
Information about Radon-200:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:199.995677±0.000194amu #
    Excess Mass (Δ):-4.027000±0.180000MeV #
    Binding Energy:1551.009000±0.180000MeV #
    β- Decay Energy:-10.080000±0.296000MeV #
"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: 0.96 s ( 0.96 sec., λ = 0.722028 s-1)
  • Mode of decay:
    α
    to
    196
    84
    Po
      (Q = 7.043 MeV)   Branch ratio: ~98.00 %
  • Mode of decay: E.C. to
    200
    85
    At
      (Q = 5.000 MeV)   Branch ratio: ~2.00 %

  • Possible parent nuclides:
    α from
    204
    88
    Ra
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)