Astatine (Z=85)
195At 196At 197At 198At 199At 200At 201At 202At 203At 204At 205At 206At 206At 207At 207At 208At 208At 209At 210At 210At 211At 212At 217At 218At 219At
Recommended† magnetic dipole moments
Isotope Energy [keV] t1/2 Spin/Parity μ [nm] Method Recommended Tables
211At 0 7.21 h 9/2- Ref. estimated +4.14(4) not measured INDC(NDS)-0915
1416 35.1 ns (21/2)- +9.56(9) TDPAD INDC(NDS)-0816
2641 50.8 ns (29/2)+ +15.31(13) TDPAD INDC(NDS)-0816
4815 4.2 ms (39/2)- 13.46(14) TDPAD INDC(NDS)-0816


Recommended† electric quadrupole moments
Isotope Energy [keV] t1/2 Spin/Parity Q [b] Method Recommended Tables
211At 1417 35.1 ns 21/2- [(-)0.524(10)] not measured INDC(NDS)-0833
2641 50.8 ns 29/2+ (-)1.01(7) TDPAD INDC(NDS)-0833
4815 4.2 ms 39/2- (-)1.88(19) LEMS 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
1416 35.1 ns 21/2- +9.56(9) TDPAD 1976HA62
1975IN01		 10.1007/BF01021163
10.1103/PhysRevC.11.243
0.524(10) est. from B(E2) 1983MA08
1995BA66		 10.1016/0370-2693(83)91161-9
10.1016/0375-9474(95)00170-6
2641 50.8 ns 29/2+ +15.31(13) TDPAD 1976HA62
1975IN01		 10.1007/BF01021163
10.1103/PhysRevC.11.243
1.01(7) [211At 1417.] TDPAD/R 1983MA08
1995BA66		 10.1016/0370-2693(83)91161-9
10.1016/0375-9474(95)00170-6
1.0(2) [211At 1417.] TDPAD 1983MA08 10.1016/0370-2693(83)91161-9
4814 4.2 μs 39/2- 13.46(14) TDPAD 1985BE22 10.1088/0031-8949/31/5/007
1.9(3) [211At 1417.] LEMS 1991SC15 10.1103/PhysRevC.43.2566
211At 0 7.2 h 9/2- estimated +4.14(4) not measured not measured LRIS 2018CU02 PhysRevC.97.054327
-0.3(2) calculated efg LRIS 2018CU02 PhysRevC.97.054327

† 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.