element
Information about Radon-202:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:201.993218±0.000163amu #
    Excess Mass (Δ):-6.318000±0.152000MeV #
    Binding Energy:1569.443000±0.152000MeV #
    β- Decay Energy:-9.379647±0.400672MeV
"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: 10.0 s ( 10 sec., λ = 0.0693147 s-1)
  • Mode of decay:
    α
    to
    198
    84
    Po
      (Q = 6.774 MeV)   Branch ratio: 86.00 %
  • Mode of decay:
    E.C.
    to
    202
    85
    At
      (Q = 4.440 MeV)   Branch ratio: 14.00 %

  • Possible parent nuclides:
    α from
    206
    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)