87-Fr-223
 basic

 element
87-francium-223

  • Atomic Mass: 223.0197307 +- 0.0000029 amu
  • Excess Mass: 18379.037 +- 2.713 keV
  • Binding Energy: 1713461.203 +- 2.730 keV
  • Beta Decay Energy: B- 1149.064 +- 0.855 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: 3/2(-)
  • Half life: 22.00 min
  • Mode of decay: Beta to Ra-223
    • Branch ratio: 99.99 %
    • Decay energy: 1.149 MeV
  • Mode of decay: Alpha to At-219
    • Branch ratio: 0.0060 %
    • Decay energy: 5.430 MeV

  • Possible parent nuclides:
    Beta from Rn-223
    Alpha from Ac-227
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
021.8 m3/2(-) +1.17(2) [211Fr]ABLSPL 163B 66 (85)
+1.17(1) [211Fr]ABLSPL 163B 66 (85)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.