Caesium (Z=55)
118Cs 119Cs 120Cs 121Cs 122Cs 123Cs 124Cs 125Cs 126Cs 127Cs 128Cs 129Cs 130Cs 131Cs 132Cs 133Cs 134Cs 135Cs 136Cs 137Cs 138Cs 139Cs 140Cs 141Cs 143Cs 144Cs 145Cs 146Cs
Recommended† magnetic dipole moments
Isotope Energy [keV] t1/2 Spin/Parity μ [nm] Method Recommended Tables
131Cs 0 9.69 d 5/2+ +3.536(3) AB/D INDC(NDS)-0794
134 8.6 ns 5/2+ +1.86(8) TDPAC INDC(NDS)-0816


Recommended† electric quadrupole moments
Isotope Energy [keV] t1/2 Spin/Parity Q [b] Method Recommended Tables
131Cs 0 9.69 d 5/2+ +0.59(2) ABLS INDC(NDS)-0833
134 8.6 ns 5/2+ 0.20(2) TDPAC INDC(NDS)-0833


Compiled‡ magnetic dipole and electric quadrupole moments from published articles
Isotope Energy [keV] t1/2 Spin/Parity μ [nm] Q [b] Ref. Std Method NSR keyword doi
131Cs 0. 9.69 d 5/2+ +3.53(2) [133Cs] ABLS 1981TH06 10.1016/0375-9474(81)90274-8
+3.543(2) AB/D 1965WO05 10.1103/PhysRev.140.B1483
+0.59(2) [133Cs] R 2013STZZ
-0.575(6) st [133Cs] OL , OD , R 1986ST16
-0.67(4) st [133Cs] ABLS 1981TH06 10.1016/0375-9474(81)90274-8
134. 8.7 ns 5/2+ +1.86(8) TDPAC 1989RA17 10.1016/0092-640X(89)90008-9
0.20(2) [133Cs] R 2013STZZ
0.022(3) [133Cs 81] TDPAC 2000DE13 10.1007/s100500050378

† Recommended magnetic moments are for the bare nucleus with published results corrected consistently for diamagnetism (including error estimate).
  Where appropriate published results are also adjusted to the most recent adopted half-life for the state.
  Recommended quadrupole moments are adjusted using the best electric field gradient calculation for the system concerned.
  For details see the Reports referenced.

‡ In this listing published results are given without adjustment or correction.