element
Information about Praseodymium-121:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:120.955364±0.000862amu #
    Excess Mass (Δ):-41.579000±0.803000MeV #
    Binding Energy:972.050000±0.803000MeV #
"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: 1.4 s ( 1.4 sec., λ = 0.495105 s-1)
  • Mode of decay: E.C. to
    121
    58
    Ce
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)