element
Information about Actinium-218:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:218.011625±0.000055amu
    Excess Mass (Δ):10.828658±0.050831MeV
    Binding Energy:1679.090262±0.050832MeV
    β- Decay Energy:-1.530164±0.052597MeV
"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: 1.08 µs ( 1.08×10-06 sec., λ = 641803 s-1)
  • Mode of decay:
    α
    to
    214
    87
    Fr
      (Q = 9.380 MeV)

  • Possible parent nuclides:
    α from
    222
    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)