element
Information about Actinium-216:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:216.008721±0.000029amu
    Excess Mass (Δ):8.123808±0.027030MeV
    Binding Energy:1665.652466±0.027031MeV
    β- Decay Energy:-2.170096±0.031242MeV
"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: (1-)
  • Half life: 0.33 ms ( 0.00033 sec., λ = 2100.45 s-1)
  • Mode of decay:
    α
    to
    212
    87
    Fr
      (Q = 9.243 MeV)
    Meta state at 0.037 Mev
  • Spin: (9-) 0.33
  • Half life: 0.33 ms ( 0.00033 sec., λ = 2100.45 s-1)
  • Mode of decay:
    α
    to
    212
    87
    Fr
      (Q = 9.280 MeV)

  • Possible parent nuclides:
    α from
    220
    91
    Pa
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)