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
41K 0 stable 3/2+ +0.214872(5) NMR INDC(NDS)-0794
1294 7.35 ns 7/2- +4.42(5) TDPAD INDC(NDS)-0816
2528 151 ps 11/2+ 4.5(10) RIGV INDC(NDS)-0816
2774 51 ps 13/2+ 3.0(5) RIGV INDC(NDS)-0816
4983 71 ps 19/2- 7(3) RIGV INDC(NDS)-0816


Recommended† electric quadrupole moments
Isotope Energy [keV] t1/2 Spin/Parity Q [b] Method Recommended Tables
0 181 ms (3/2+) -0.15(11) CLS INDC(NDS)-0833
0 stable 3/2+ +0.734(7) 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
41K 0. stable 3/2+ +0.2148701(2) AB/D 1974BE50 10.1007/BF01680407
+0.21489274(12) [2H] NMR 1974SA24
1974SA25
+0.0711(7) a R 2008PY02
1998KE05
2013STZZ		 10.1080/00268970802018367
10.1016/S0009-2614(98)00680-0
+0.073(2) a R 1993SU36 10.1063/1.464732
+0.060(5) st MB , R 1971ST12 10.1103/PhysRevA.3.837
1294. 7.42 ns 7/2- +4.42(5) [19F 197.] TDPAD 1969BI07 10.1016/0370-2693(69)90406-7
2528. 152 ps 11/2+ 4.5(10) [41K 1294.] RIGV 1981LE19 10.1007/BF01416300
2774. 55 ps 13/2+ 3.0(5) [41K 1294.] RIGV 1981LE19 10.1007/BF01416300
4983. 73 ps 19/2- 7(3) [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.