151
68
Er
element 		Information about Erbium-151:

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

    Atomic Mass:150.937460±0.000320amu #
    Excess Mass (Δ):-58.256000±0.298000MeV #
    Binding Energy:1223.825000±0.298000MeV #
    β- Decay Energy:-7.427000±0.327000MeV #
"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: (7/2-)
  • Half life: 23.5 s ( 23.5 sec., λ = 0.0294956 s-1)
  • Mode of decay:
    E.C.
     to
    151
    67
    Ho
       (Q = 5.400 MeV)
    Meta state at 2.585 Mev
  • Spin: 27/2-) 23.5
  • Half life: 0.58 s ( 0.58 sec., λ = 1.19508 s-1)
  • Mode of decay: γ (IT)  (Q = 2.586 MeV)   Branch ratio: 95.30 %
  • Mode of decay:
    E.C.
     to
    151
    67
    Ho
       (Q = 7.986 MeV)   Branch ratio: 4.70 %

  • Possible parent nuclides:
    E.C. from
    151
    69
    Tm
    E.C. +
    1
    1
    p+ from
    152
    70
    Yb
    α from
    155
    70
    Yb
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)