element
Information about Lanthanum-128:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:127.915448±0.000430amu
    Excess Mass (Δ):-78.759725±0.400157MeV
    Binding Energy:1067.294900±0.400157MeV
    β- Decay Energy:-3.188000±0.499000MeV #
"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: 4-,5-
  • Half life: 5.0 min ( 300 sec., λ = 0.00231049 s-1)
  • Mode of decay:
    E.C.
    to
    128
    56
    Ba
      (Q = 6.700 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)