84-Po-205
 basic

 element
84-polonium-205

  • Atomic Mass: 204.9811654 +- 0.0000316 amu
  • Excess Mass: -17544.318 +- 29.437 keV
  • Binding Energy: 1606447.808 +- 29.439 keV
  • Beta Decay Energy: B- -4537.266 +- 42.957 keV
"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.
  • Spin: 5/2-
  • Half life: 1.66 h
  • Mode of decay: Electron capture to Bi-205
    • Branch ratio: 99.96 %
    • Decay energy: 3.530 MeV
  • Mode of decay: Alpha to Pb-201
    • Branch ratio: 0.04 %
    • Decay energy: 5.324 MeV

  • Possible parent nuclides:
    Electron capture from At-205
    Alpha from Rn-209
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
01.66 h5/2- +0.76(6) [207Po]NMR/ONZP A311 351 (83)
880640 ms13/2+ -0.95(5) TDPADCf74Upp 116 (74)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.