element
Information about Radon-218:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:218.005586±0.000004amu
    Excess Mass (Δ):5.203618±0.003474MeV
    Binding Energy:1687.062361±0.003486MeV
    β- Decay Energy:-1.841573±0.004943MeV
"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: 35 ms ( 0.035 sec., λ = 19.8042 s-1)
  • Mode of decay:
    α
    to
    214
    84
    Po
      (Q = 7.263 MeV)

  • Possible parent nuclides:
    β- from
    218
    85
    At
    α from
    222
    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)