72
34
Se
element 		Information about Selenium-72:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation
    Mass-Energy Data:

    Atomic Mass:71.927112±0.000013amu
    Excess Mass (Δ):-67.894432±0.012094MeV
    Binding Energy:622.429659±0.012094MeV
    β- Decay Energy:-8.741663±0.258889MeV
"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: 0+
  • Half life: 8.40 days ( 725760 sec., λ = 9.55064×10-07 s-1)
  • Mode of decay:
    E.C.
     to
    72
    33
    As
       (Q = 0.335 MeV)

  • Possible parent nuclides:
    E.C. from
    72
    35
    Br
    E.C. +
    1
    1
    p+ from
    73
    36
    Kr
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)