element
Information about Astatine-216:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:216.002409±0.000005amu
    Excess Mass (Δ):2.243818±0.004234MeV
    Binding Energy:1674.661869±0.004244MeV
    β- Decay Energy:2.003351±0.008009MeV
"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: 0.30 ms ( 0.0003 sec., λ = 2310.49 s-1)
  • Mode of decay:
    α
    to
    212
    83
    Bi
      (Q = 7.949 MeV)
  • Mode of decay: β- to
    216
    86
    Rn
      (Q = 2.003 MeV)   Branch ratio: <0.0060 %
  • Mode of decay: E.C. to
    216
    84
    Po
      (Q = 0.469 MeV)   Branch ratio: <3.0E-7 %
    Meta state at 0.413 Mev
  • Spin: (9-) 0.30
  • Half life: 0.1 ms ( 0.0001 sec., λ = 6931.47 s-1)
  • Mode of decay:
    α
    to
    212
    83
    Bi
      (Q = 8.362 MeV)

  • Possible parent nuclides:
    α from
    220
    87
    Fr
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)