Potassium (Z=19)
35K 36K 37K 38K 39K 40K 41K 42K 43K 44K 45K 46K 47K 49K 51K
Recommended† magnetic dipole moments
Isotope Energy [keV] t1/2 Spin/Parity μ [nm] Method Recommended Tables
40K 0 1.25x109 y 4- -1.29797(3) INDC(NDS)-0794
30 4.25 ns 3- -1.29(9) TDPAD INDC(NDS)-0816
2543 1.09 ns 7+ +4.1(7) IMPAD INDC(NDS)-0816


Recommended† electric quadrupole moments
Isotope Energy [keV] t1/2 Spin/Parity Q [b] Method Recommended Tables
40K 0 1.25x109 y 4- -0.750(8) AB 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
40K 0. 1.3×109y 4- -1.298100(3) [2H] NMR 1974SA24
-1.2982(4) AB/D 1952EI09 10.1103/PhysRev.86.73
-0.073(1) a [39K] R 2008PY02
1998KE05
2013STZZ		 10.1080/00268970802018367
10.1016/S0009-2614(98)00680-0
-0.075(2) a [39K] R 1993SU36 10.1063/1.464732
-0.061(5) st [39K] Q , OL 1972JO09
1971ST12		 10.1103/PhysRevB.6.757
10.1103/PhysRevA.3.837
30. 4.30 ns 3- -1.29(9) [19F 197] TDPAD 1974BR12 10.1016/0370-2693(74)90428-6
2543. 1 ns 7+ +4.1(7) IMPAD 1976BO21 10.1016/0375-9474(76)90150-0
+4.4(11) [41K 1294] RIGV 1981LE19 10.1007/BF01416300

† 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.