Massa atomica standard:178.49 uma Tabella simbolo Z N massa isotopica (u) emivita spin nucleare DM DP NA energia di eccitazione (per gli isomeri nucleari) 153Hf 72 81 152.97069(54)# 400# ms [>200 ns] 1/2+# 153mHf 750(100)# keV 500# ms 11/2-# 154Hf 72 82 153.96486(54)# 2(1) sec 0+ 155Hf 72 83 154.96339(43)# 890(120) ms 7/2-# 156Hf 72 84 155.95936(22) 23(1) ms 0+ 156mHf 1959.0(10) keV 480(40) µs 8+ 157Hf 72 85 156.95840(21)# 115(1) ms 7/2- 158Hf 72 86 157.954799(19) 2.84(7) sec 0+ 159Hf 72 87 158.953995(18) 5.20(10) sec 7/2-# 160Hf 72 88 159.950684(12) 13.6(2) sec 0+ 161Hf 72 89 160.950275(24) 18.2(5) sec 3/2-# 162Hf 72 90 161.94721(1) 39.4(9) sec 0+ 163Hf 72 91 162.94709(3) 40.0(6) sec 3/2-# 164Hf 72 92 163.944367(22) 111(8) sec 0+ 165Hf 72 93 164.94457(3) 76(4) sec (5/2-) 166Hf 72 94 165.94218(3) 6.77(30) min 0+ 167Hf 72 95 166.94260(3) 2.05(5) min (5/2)- 168Hf 72 96 167.94057(3) 25.95(20) min 0+ 169Hf 72 97 168.94126(3) 3.24(4) min (5/2)- 170Hf 72 98 169.93961(3) 16.01(13) h 0+ 171Hf 72 99 170.94049(3) 12.1(4) h 7/2(+) 171mHf 21.93(9) keV 29.5(9) sec 1/2(-) 172Hf 72 100 171.939448(26) 1.87 anni 0+ ε 172Lu 172mHf 2005.58(11) keV 163 ns (8-) ? 172Hf 173Hf 72 101 172.94051(3) 23.6(1) ore 1/2- 174Hf 72 102 173.940046(3) 2.0(4)E+15 anni 0+ 174m1Hf 1549.3 keV 138(4) ns (6+) 174m2Hf 1797.5(20) keV 2.39(4) µs (8-) 174m3Hf 1797.5 keV 2.39(4) µs (8-) 174m4Hf 3311.7 keV 3.7(2) µs (14+) 175Hf 72 103 174.941509(3) 70 giorni 5/2- 176Hf 72 104 175.9414086(24) STABILE 0+ 5,206% 177Hf 72 105 176.9432207(23) STABILE 7/2- 18,606% 177m1Hf 1315.4504(8) keV 1.09(5) sec 23/2+ 177m2Hf 1342.38(20) keV 55.9(12) µs (19/2-) 177m3Hf 2740.02(15) keV 51.4(5) min 37/2- 178Hf 72 106 177.9436988(23)STABILE 0+ 27.297% 178m1Hf 1147.423(5) keV 4.0(2) sec 8- 178m2Hf 2573.5(5) keV 68(2) µs (14-) γ 178Hf 178m3Hf 2445.69(11) keV 31(1) anni 16+ 179Hf 72 107 178.9458161(23) STABILE 9/2+ 13.629% 179m1Hf 375.0367(25) keV 18.67(4) sec 1/2- 179m2Hf 1105.84(19) keV 25.05(25) giorni 25/2- 180Hf 72 108 179.9465500(23) STABILE 0+ 35,1% 180m1Hf 1141.48(4) keV 5.47(4) hr 8- 180m2Hf 1374.15(4) keV 0.57(2) µs (4-) 180m3Hf 2425.8(10) keV 15(5) µs (10+) 180m4Hf 2486.3(9) keV 10(1) µs 12+ 180m5Hf 2538.3(12) keV >10 µs (14+) 180m6Hf 3599.3(18) keV 90(10) µs (18-) 181Hf 72 109 180.9491012(23) 42.39(6) giorni 1/2- 181m1Hf 595(3) keV 80(5) µs (9/2+) 181m2Hf 1040(10) keV ~100 µs (17/2+) 181m3Hf 1738(10) keV 1.5(5) ms (27/2-) 182Hf 72 110 181.950554(7) 8.90(9)E+6 anni 0+ 182mHf 1172.88(18) keV 61.5(15) min 8- 183Hf 72 111 182.95353(3) 1.067(17) ore (3/2-) 184Hf 72 112 183.95545(4) 4.12(5) ore 0+ 184mHf 1272.4(4) keV 48(10) sec 8- 185Hf 72 113 184.95882(21)# 3.5(6) min 3/2-# 186Hf 72 114 185.96089(32)# 2.6(12) min 0+ 187Hf 72 115 186.96459(43)# 30# s [>300 ns] 188Hf 72 116 187.96685(54)# 20# s [>300 ns] 0+
Afnio Categoria:Afnio