element
Information about Protactinium-220:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:220.021876±0.000061amu
    Excess Mass (Δ):20.377819±0.056838MeV
    Binding Energy:1684.119039±0.056839MeV
    β- Decay Energy:-2.641000±0.209000MeV #
"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:

  • Half life: 0.78 µs ( 7.8×10-07 sec., λ = 888650 s-1)
  • Mode of decay:
    α
    to
    216
    89
    Ac
      (Q = 9.830 MeV)
  • Mode of decay: E.C. to
    220
    90
    Th
      (Q = 5.720 MeV)   Branch ratio: 3.0E-7 %
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)