# Isotopi dell'afnio

Massa atomica standard:178.49 uma

## Tabella

| simbolo | Z | N | massa isotopica (u) | emivita | spin nucleare | DM | DP | NA |
| NA |||
| $^{153}$Hf | 72 | 81 | 152.97069(54)# | 400# ms [>200 ns] | 1/2+# | | | |
| $^{153m}$Hf | 750(100)# keV | 750(100)# keV | 750(100)# keV | 500# ms | 11/2-# | | | |
| $^{154}$Hf | 72 | 82 | 153.96486(54)# | 2(1) sec | 0+ | | | |
| $^{155}$Hf | 72 | 83 | 154.96339(43)# | 890(120) ms | 7/2-# | | | |
| $^{156}$Hf | 72 | 84 | 155.95936(22) | 23(1) ms | 0+ | | | |
| $^{156m}$Hf | 1959.0(10) keV | 1959.0(10) keV | 1959.0(10) keV | 480(40) µs | 8+ | | | |
| $^{157}$Hf | 72 | 85 | 156.95840(21)# | 115(1) ms | 7/2- | | | |
| $^{158}$Hf | 72 | 86 | 157.954799(19) | 2.84(7) sec | 0+ | | | |
| $^{159}$Hf | 72 | 87 | 158.953995(18) | 5.20(10) sec | 7/2-# | | | |
| $^{160}$Hf | 72 | 88 | 159.950684(12) | 13.6(2) sec | 0+ | | | |
| $^{161}$Hf | 72 | 89 | 160.950275(24) | 18.2(5) sec | 3/2-# | | | |
| $^{162}$Hf | 72 | 90 | 161.94721(1) | 39.4(9) sec | 0+ | | | |
| $^{163}$Hf | 72 | 91 | 162.94709(3) | 40.0(6) sec | 3/2-# | | | |
| $^{164}$Hf | 72 | 92 | 163.944367(22) | 111(8) sec | 0+ | | | |
| $^{165}$Hf | 72 | 93 | 164.94457(3) | 76(4) sec | (5/2-) | | | |
| $^{166}$Hf | 72 | 94 | 165.94218(3) | 6.77(30) min | 0+ | | | |
| $^{167}$Hf | 72 | 95 | 166.94260(3) | 2.05(5) min | (5/2)- | | | |
| $^{168}$Hf | 72 | 96 | 167.94057(3) | 25.95(20) min | 0+ | | | |
| $^{169}$Hf | 72 | 97 | 168.94126(3) | 3.24(4) min | (5/2)- | | | |
| $^{170}$Hf | 72 | 98 | 169.93961(3) | 16.01(13) h | 0+ | | | |
| $^{171}$Hf | 72 | 99 | 170.94049(3) | 12.1(4) h | 7/2(+) | | | |
| $^{171m}$Hf | 21.93(9) keV | 21.93(9) keV | 21.93(9) keV | 29.5(9) sec | 1/2(-) | | | |
| $^{172}$Hf | 72 | 100 | 171.939448(26) | 1.87 anni | 0+ | ε | $^{172}$Lu | |
| $^{172m}$Hf | 2005.58(11) keV | 2005.58(11) keV | 2005.58(11) keV | 163 ns | (8-) | ? | $^{172}$Hf | |
| $^{173}$Hf | 72 | 101 | 172.94051(3) | 23.6(1) ore | 1/2- | | | |
| $^{174}$Hf | 72 | 102 | 173.940046(3) | 2.0(4)E+15 anni | 0+ | | | |
| $^{174m1}$Hf | 1549.3 keV | 1549.3 keV | 1549.3 keV | 138(4) ns | (6+) | | | |
| $^{174m2}$Hf | 1797.5(20) keV | 1797.5(20) keV | 1797.5(20) keV | 2.39(4) µs | (8-) | | | |
| $^{174m3}$Hf | 1797.5 keV | 1797.5 keV | 1797.5 keV | 2.39(4) µs | (8-) | | | |
| $^{174m4}$Hf | 3311.7 keV | 3311.7 keV | 3311.7 keV | 3.7(2) µs | (14+) | | | |
| $^{175}$Hf | 72 | 103 | 174.941509(3) | 70 giorni | 5/2- | | | |
| $^{176}$Hf | 72 | 104 | 175.9414086(24) | STABILE | 0+ | | | 5,206% |
| $^{177}$Hf | 72 | 105 | 176.9432207(23) | STABILE | 7/2- | | | 18,606% |
| $^{177m1}$Hf | 1315.4504(8) keV | 1315.4504(8) keV | 1315.4504(8) keV | 1.09(5) sec | 23/2+ | | | |
| $^{177m2}$Hf | 1342.38(20) keV | 1342.38(20) keV | 1342.38(20) keV | 55.9(12) µs | (19/2-) | | | |
| $^{177m3}$Hf | 2740.02(15) keV | 2740.02(15) keV | 2740.02(15) keV | 51.4(5) min | 37/2- | | | |
| $^{178}$Hf | 72 | 106 | 177.9436988(23) | STABILE | 0+ | | | 27.297% |
| $^{178m1}$Hf | 1147.423(5) keV | 1147.423(5) keV | 1147.423(5) keV | 4.0(2) sec | 8- | | | |
| $^{178m2}$Hf | 2573.5(5) keV | 2573.5(5) keV | 2573.5(5) keV | 68(2) µs | (14-) | γ | $^{178}$Hf | |
| $^{178m3}$Hf | 2445.69(11) keV | 2445.69(11) keV | 2445.69(11) keV | 31(1) anni | 16+ | | | |
| $^{179}$Hf | 72 | 107 | 178.9458161(23) | STABILE | 9/2+ | | | 13.629% |
| $^{179m1}$Hf | 375.0367(25) keV | 375.0367(25) keV | 375.0367(25) keV | 18.67(4) sec | 1/2- | | | |
| $^{179m2}$Hf | 1105.84(19) keV | 1105.84(19) keV | 1105.84(19) keV | 25.05(25) giorni | 25/2- | | | |
| $^{180}$Hf | 72 | 108 | 179.9465500(23) | STABILE | 0+ | | | 35,1% |
| $^{180m1}$Hf | 1141.48(4) keV | 1141.48(4) keV | 1141.48(4) keV | 5.47(4) hr | 8- | | | |
| $^{180m2}$Hf | 1374.15(4) keV | 1374.15(4) keV | 1374.15(4) keV | 0.57(2) µs | (4-) | | | |
| $^{180m3}$Hf | 2425.8(10) keV | 2425.8(10) keV | 2425.8(10) keV | 15(5) µs | (10+) | | | |
| $^{180m4}$Hf | 2486.3(9) keV | 2486.3(9) keV | 2486.3(9) keV | 10(1) µs | 12+ | | | |
| $^{180m5}$Hf | 2538.3(12) keV | 2538.3(12) keV | 2538.3(12) keV | >10 µs | (14+) | | | |
| $^{180m6}$Hf | 3599.3(18) keV | 3599.3(18) keV | 3599.3(18) keV | 90(10) µs | (18-) | | | |
| $^{181}$Hf | 72 | 109 | 180.9491012(23) | 42.39(6) giorni | 1/2- | | | |
| $^{181m1}$Hf | 595(3) keV | 595(3) keV | 595(3) keV | 80(5) µs | (9/2+) | | | |
| $^{181m2}$Hf | 1040(10) keV | 1040(10) keV | 1040(10) keV | ~100 µs | (17/2+) | | | |
| $^{181m3}$Hf | 1738(10) keV | 1738(10) keV | 1738(10) keV | 1.5(5) ms | (27/2-) | | | |
| $^{182}$Hf | 72 | 110 | 181.950554(7) | 8.90(9)E+6 anni | 0+ | | | |
| $^{182m}$Hf | 1172.88(18) keV | 1172.88(18) keV | 1172.88(18) keV | 61.5(15) min | 8- | | | |
| $^{183}$Hf | 72 | 111 | 182.95353(3) | 1.067(17) ore | (3/2-) | | | |
| $^{184}$Hf | 72 | 112 | 183.95545(4) | 4.12(5) ore | 0+ | | | |
| $^{184m}$Hf | 1272.4(4) keV | 1272.4(4) keV | 1272.4(4) keV | 48(10) sec | 8- | | | |
| $^{185}$Hf | 72 | 113 | 184.95882(21)# | 3.5(6) min | 3/2-# | | | |
| $^{186}$Hf | 72 | 114 | 185.96089(32)# | 2.6(12) min | 0+ | | | |
| $^{187}$Hf | 72 | 115 | 186.96459(43)# | 30# s [>300 ns] | | | | |
| $^{188}$Hf | 72 | 116 | 187.96685(54)# | 20# s [>300 ns] | 0+ | | | |