86-Rn-203
 basic

 element
86-radon-203

  • Atomic Mass: 202.9933160 +- 0.0004430 amu #
  • Excess Mass: -6226.000 +- 412.000 keV #
  • Binding Energy: 1577422.000 +- 412.000 keV #
  • Beta Decay Energy: B- -7202.000 +- 357.000 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: /2,5/2)-
  • Half life: 45 s
  • Mode of decay: Alpha to Po-199
    • Branch ratio: 66.00 %
    • Decay energy: 6.630 MeV
  • Mode of decay: EC to At-203
    • Branch ratio: 34.00 %
    • Decay energy: 6.000 MeV

    Meta state at 0.361 Mev
  • Spin: 13/2+)
  • Half life: 28 s
  • Mode of decay: Alpha to Po-199
    • Branch ratio: ~80.00 %
    • Decay energy: 6.991 MeV
  • Mode of decay: EC to At-203
    • Branch ratio: ~20.00 %
    • Decay energy: 6.361 MeV
  • Mode of decay: IT to Rn-203
    • Branch ratio: <0.10 %
    • Decay energy: 0.361 MeV

  • Possible parent nuclides:
    Alpha from Ra-207
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
36128 s(13/2+) -0.960(11) [209Rn]CFBLSHFI 34 25 (87)
+1.28(13) CFBLSCERN EP/87 51 (87)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.