56-Ba-123
 basic

 element
56-barium-123

  • Atomic Mass: 122.9188500 +- 0.0003200 amu #
  • Excess Mass: -75591.000 +- 298.000 keV #
  • Binding Energy: 1024552.000 +- 298.000 keV #
  • Beta Decay Energy: B- -6884.000 +- 499.000 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: 5/2+
  • Half life: 2.7 min
  • Mode of decay: Electron capture to Cs-123
    • Decay energy: 5.500 MeV

  • Possible parent nuclides:
    Electron capture from La-123
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
02.7 m5/2+ -0.680(1) "[135,137Ba]"CFBLSPL 211B 272 (88)
-0.69(2) "[135,137Ba]"CFBLSNP A403 234 (83)
+1.49(12) st "[135,137Ba]"CFBLSPL 211B 272 (88)
+1.52(13) "[135,137Ba]"CFBLSNP A403 234 (83)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.