element
Information about Thorium-222:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:222.018454±0.000014amu
    Excess Mass (Δ):17.189909±0.012905MeV
    Binding Energy:1704.231948±0.012908MeV
    β- Decay Energy:-4.910000±0.074000MeV #
"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: 2.8 ms ( 0.0028 sec., λ = 247.553 s-1)
  • Mode of decay:
    α
    to
    218
    88
    Ra
      (Q = 8.129 MeV)

  • Possible parent nuclides:
    α from
    226
    92
    U
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)