element
Information about Thorium-217:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:217.013066±0.000033amu
    Excess Mass (Δ):12.171056±0.030956MeV
    Binding Energy:1668.894187±0.030957MeV
    β- Decay Energy:-4.864635±0.083210MeV
"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: (9/2+)
  • Half life: 0.252 ms ( 0.000252 sec., λ = 2750.58 s-1)
  • Mode of decay:
    α
    to
    213
    88
    Ra
      (Q = 9.424 MeV)
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)