71
34
Se
element 		Information about Selenium-71:

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

    Atomic Mass:70.932268±0.000215amu #
    Excess Mass (Δ):-63.092000±0.200000MeV #
    Binding Energy:609.556000±0.200000MeV #
    β- Decay Energy:-6.500000±0.361000MeV #
"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: 5/2-
  • Half life: 4.74 min ( 284.4 sec., λ = 0.00243723 s-1)
  • Mode of decay:
    E.C.
     to
    71
    33
    As
       (Q = 4.800 MeV)

  • Possible parent nuclides:
    E.C. from
    71
    35
    Br
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)