189
79
Au
element 		Information about Gold-189:

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

    Atomic Mass:188.963892±0.000215amu #
    Excess Mass (Δ):-33.635000±0.200000MeV #
    Binding Energy:1497.309000±0.200000MeV #
    β- Decay Energy:-3.950000±0.200000MeV #
"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: 28.7 min ( 1722 sec., λ = 0.000402524 s-1)
  • Mode of decay:
    E.C.
     to
    189
    78
    Pt
       (Q = 2.850 MeV)
  • Mode of decay: α to
    185
    77
    Ir
       (Q = 4.400 MeV)   Branch ratio: <3.0E-5 %
    Meta state at 0.247 Mev
  • Spin: 11/2- 28.7
  • Half life: 4.59 min ( 275.4 sec., λ = 0.00251687 s-1)
  • Mode of decay:
    E.C.
     to
    189
    78
    Pt
       (Q = 3.097 MeV)
  • Mode of decay: γ (IT) to
    189
    79
    Au
       (Q = 0.247 MeV)   Branch ratio: >0.00 %

  • Possible parent nuclides:
    E.C. from
    189
    80
    Hg
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
028.7 m1/2+ +0.494(14) LRIMSNP A493 224 (89)/PRL 58 1516 (87)
2474.6 m11/2- +6.19(2) LRIMSNP A493 224 (89)/PRL 58 1516 (87)
6.17(15) [195Au 319]"NO/S, NMR/ON"PR B34 2014 (86)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.