197
83
Bi
element 		Information about Bismuth-197:

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

    Atomic Mass:196.978934±0.000261amu
    Excess Mass (Δ):-19.622582±0.242698MeV
    Binding Energy:1544.737843±0.242698MeV
    β- Decay Energy:-6.178000±0.310000MeV #
"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: (9/2-)
  • Half life: 9.33 min ( 559.8 sec., λ = 0.00123821 s-1)
  • Mode of decay:
    E.C.
     to
    197
    82
    Pb
       (Q = 5.200 MeV)
  • Mode of decay:
    α
     to
    193
    81
    Tl
       (Q = 5.390 MeV)   Branch ratio: 0.00010 %
    Meta state at 0.500 Mev
  • Spin: (1/2+) 9.33
  • Half life: 5.04 min ( 302.4 sec., λ = 0.00229215 s-1)
  • Mode of decay:
    α
     to
    193
    81
    Tl
       (Q = 5.890 MeV)   Branch ratio: 55.00 %
  • Mode of decay:
    E.C.
     to
    197
    82
    Pb
       (Q = 5.700 MeV)   Branch ratio: 45.00 %
  • Mode of decay: γ (IT) to
    197
    83
    Bi
       (Q = 0.500 MeV)   Branch ratio: <0.30 %

  • Possible parent nuclides:
    α from
    201
    85
    At
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)