189
81
Tl
element 		Information about Thallium-189:

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

    Atomic Mass:188.973689±0.000372amu #
    Excess Mass (Δ):-24.508000±0.347000MeV #
    Binding Energy:1486.618000±0.347000MeV #
    β- Decay Energy:-6.698000±0.439000MeV #
"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: (1/2+)
  • Half life: 2.3 min ( 138 sec., λ = 0.00502281 s-1)
  • Mode of decay:
    E.C.
     to
    189
    80
    Hg
       (Q = 5.180 MeV)
    Meta state at 0.281 Mev
  • Spin: (9/2-) 2.3
  • Half life: 1.4 min ( 84 sec., λ = 0.00825175 s-1)
  • Mode of decay:
    E.C.
     to
    189
    80
    Hg
       (Q = 5.461 MeV)
  • Mode of decay: γ (IT) to
    189
    81
    Tl
       (Q = 0.281 MeV)   Branch ratio: <4.00 %

  • Possible parent nuclides:
    α from
    193
    83
    Bi
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)
Magnetic Dipole Moments and Electric Quadrupole Moments
Ex(kev)T1/2Spin    m(nm)    Q(b)    Ref. Std.MethodReference
2811.4 m9/2- +3.878(6) "[203,205"CFBLSPR C36 2560 (87)
-2.29(4) CFBLSPR C36 2560 (87)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.