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
133Cs 0 stable 7/2+ +2.5778(14) OP/RD INDC(NDS)-0794
81 6.28 ns 5/2+ +3.45(2) ME INDC(NDS)-0816
161 172 ps 5/2+ +2.25(15) IPAC INDC(NDS)-0816


Recommended† electric quadrupole moments
Isotope Energy [keV] t1/2 Spin/Parity Q [b] Method Recommended Tables
133Cs 0 stable 7/2+ -0.00343(10) MB INDC(NDS)-0833
81 6.28 ns 5/2+ 0.30(2) ME 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
133Cs 0. stable 7/2+ +2.582025(3) [87Rb] OP/RD 1973WH01 10.1103/PhysRevA.7.1178
+2.5829128(15) [2H] NMR 1968LU07
1967LU06
10.1016/0375-9601(67)90068-0
-0.00343(10) MB 1998PE18
2013STZZ		 10.1063/1.476089
-0.00355(4) CLS 2003GE06 10.1103/PhysRevLett.91.072501
-0.00371(14) OL 1988TA17
1981TH06		 10.1103/PhysRevA.38.1616
10.1016/0375-9474(81)90274-8
-0.009(4) st ABLS 1981TH06 10.1016/0375-9474(81)90274-8
81. 6.31 ns 5/2+ +3.45(2) [133Cs] ME 1968CA03 10.1016/0375-9474(68)90557-5
-0.30(2) [133Cs] R 2013STZZ
-0.33(2) st [133Cs] ME 1977CA30 10.1103/PhysRevB.15.3318
161. 190 ps 5/2+ +2.0(2) IPAC 1979TH02 10.1016/0375-9474(79)90472-X

† 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.