51-Sb-121
 basic
 fission yield
 n-XS summary
 XS graphs

 element
51-antimony-121

  • Atomic Mass: 120.9038180 +- 0.0000024 amu
  • Excess Mass: -89592.901 +- 2.266 keV
  • Binding Energy: 1026322.937 +- 2.272 keV
  • Beta Decay Energy: B- -1035.608 +- 25.155 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.
  • Atomic Percent Abundance: 57.21%
  • Spin: 5/2+
  • Stable Isotope

  • Possible parent nuclides:
    Beta from Sn-121
    Electron capture from Te-121
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
0stable5/2+ +3.3634(3) [23Na]NPR 81 20 (51)
-0.36(4) st OZP A288 247 (78)
-0.45(3) st "AB, R"APPo A49 541 (76)
373.5 ns7/2+ +2.518(7) [121Sb]MEPR C13 2589 (76)
-0.48(5) st [121Sb]MEPL 32A 91 (70)
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published.  2000 Courtesy of T. Burrows at BNL/NNDC.