element
Information about Europium-135:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:134.941720±0.000640amu #
    Excess Mass (Δ):-54.287000±0.596000MeV #
    Binding Energy:1094.628000±0.596000MeV #
"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: 1.5 s ( 1.5 sec., λ = 0.462098 s-1)
  • Mode of decay:
    E.C.
    to
    135
    62
    Sm
      (Q = 8.700 MeV)
  • Mode of decay: E.C. +
    1
    1
    p+ to
    134
    61
    Pm
      (Q = 5.000 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)