185
78
Pt
element 		Information about Platinum-185:

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

    Atomic Mass:184.960754±0.000222amu
    Excess Mass (Δ):-36.557611±0.206649MeV
    Binding Energy:1468.728765±0.206649MeV
    β- Decay Energy:-4.707000±0.040000MeV
"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: 70.9 min ( 4254 sec., λ = 0.00016294 s-1)
  • Mode of decay:
    E.C.
     to
    185
    77
    Ir
       (Q = 3.800 MeV)
  • Mode of decay:
    α
     to
    181
    76
    Os
       (Q = 4.540 MeV)
    Meta state at 0.103 Mev
  • Spin: 1/2- 70.9
  • Half life: 33.0 min ( 1980 sec., λ = 0.000350074 s-1)
  • Mode of decay:
    E.C.
     to
    185
    77
    Ir
       (Q = 3.903 MeV)   Branch ratio: >98.00 %
  • Mode of decay: γ (IT) to
    185
    78
    Pt
       (Q = 0.103 MeV)   Branch ratio: <2.00 %
  • Mode of decay:
    α
     to
    181
    76
    Os
       (Q = 4.643 MeV)

  • Possible parent nuclides:
    E.C. from
    185
    79
    Au
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
070.9 m9/2+ 0.774(14) NMR/ONHFI 59 83 (90)
-0.83(1) [195Pt]LRIMSPL 217 401 (89)
+4.3(5) LRIMSPL 217 401 (89)
3.4(5) [189Pt]NO/SHFI 59 83 (90)
+4.5(1) [191Pt]NMR/ONCf93Bern 173(93)
10333 m1/2- +0.540(9) [195Pt]LRIMSZP A342 1 (92)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.