element
Information about Protactinium-239:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:239.057130±0.000320amu #
    Excess Mass (Δ):53.216000±0.298000MeV #
    Binding Energy:1804.636000±0.298000MeV #
    β- Decay Energy:2.648000±0.298000MeV #
"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: (1/2+)
  • Half life: 106 min ( 6360 sec., λ = 0.000108985 s-1)
  • Mode of decay: β- to
    239
    92
    U
      (Q = 2.600 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)