element
Information about Lead-189:

WikipediaNeutron Cross SectionsX-Ray TransitionsX-Ray Attenuation

    Mass-Energy Data:

    Atomic Mass:188.980880±0.000290amu #
    Excess Mass (Δ):-17.810000±0.270000MeV #
    Binding Energy:1479.137000±0.270000MeV #
    β- Decay Energy:-8.034000±0.483000MeV #
"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: 51 s ( 51 sec., λ = 0.0135911 s-1)
  • Mode of decay: E.C. to
    189
    81
    Tl
      (Q = 6.700 MeV)   Branch ratio: >99.00 %
  • Mode of decay:
    α
    to
    185
    80
    Hg
      (Q = 5.850 MeV)   Branch ratio: ~0.40 %

  • Possible parent nuclides:
    α from
    193
    84
    Po
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)