Periodic Table of Elements
Hf - Hafnium
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Nuclides / Isotopes
| Nuc- lide | Atomic Mass | NN | Abun % | Spin | Half Life | DM | DT | BR % | Decay Energy (MeV) |
|---|---|---|---|---|---|---|---|---|---|
| Hf154 | 153.964 | 82 | Syn | 0+ | 2s |  | Lu154 | ~100 | 6.700 |
| 2s |  | Yb150 | ~0 | 3.400 | |||||
| meta state 2.671MeV | Syn | 10+ | 9us | IT | 2.671 | ||||
| Hf155 | 154.963 | 83 | Syn | 0.89s | | Yb151 | 4.600 | ||
| 0.89s | | Lu155 | 8.000 | ||||||
| Hf156 | 155.959 | 84 | Syn | 0+ | 25ms | | Yb152 | >=81 | 6.033 |
| Hf157 | 156.958 | 85 | Syn | 7/2- | 110ms | | Yb153 | 86 | 5.880 |
| 110ms | | Lu157 | 14 | 7.500 | |||||
| Hf158 | 157.955 | 86 | Syn | 0+ | 2.85s | | Lu158 | 56 | 5.100 |
| 2.85s | | Yb154 | 44 | 5.403 | |||||
| Hf159 | 158.954 | 87 | Syn | 5.6s | | Lu159 | 59 | 6.700 | |
| 5.6s | | Yb155 | 41 | 5.220 | |||||
| Hf160 | 159.951 | 88 | Syn | 0+ | 13.6s | | Lu160 | 99.3 | 4.370 |
| 13.6s | | Yb156 | 0.7 | 4.903 | |||||
| Hf161 | 160.9503 | 89 | Syn | 13/2+ | 16.8s | | Lu161 | >=99.71 | 6.300 |
| 16.8s | | Yb157 | <=0.29 | 4.720 | |||||
| Hf162 | 161.9472 | 90 | Syn | 0+ | 37.6s | | Lu162 | 99.99 | 3.710 |
| 37.6s | | Yb158 | 0.008 | 4.417 | |||||
| Hf163 | 162.947 | 91 | Syn | 40s | | Lu163 | 5.500 | ||
| Hf164 | 163.944 | 92 | Syn | 0+ | 111s | | Lu164 | 2.970 | |
| Hf165 | 164.945 | 93 | Syn | 5/2- | 76s | | Lu165 | 4.600 | |
| Hf166 | 165.942 | 94 | Syn | 0+ | 6.77m | | Lu166 | 2.300 | |
| Hf167 | 166.943 | 95 | Syn | 5/2- | 2.05m | | Lu167 | 4.000 | |
| Hf168 | 167.941 | 96 | Syn | 0+ | 25.95m | | Lu168 | 1.800 | |
| Hf169 | 168.9412 | 97 | Syn | 5/2- | 3.24m | | Lu169 | 3.270 | |
| Hf170 | 169.94 | 98 | Syn | 0+ | 16.01h | | Lu170 | 1.100 | |
| Hf171 | 170.94 | 99 | Syn | 7/2+ | 12.1h | | Lu171 | 2.400 | |
| Hf172 | 171.9395 | 100 | Syn | 0+ | 1.87y | | Lu172 | 0.350 | |
| Hf173 | 172.941 | 101 | Syn | 1/2- | 23.6h | | Lu173 | 1.610 | |
| Hf174 | 173.94 | 102 | 0.162 | 0+ | 2.0E 15y | | Yb170 | 2.495 | |
| Hf175 | 174.9415 | 103 | Syn | 5/2- | 70d | | Lu175 | 0.686 | |
| Hf176 | 175.9414 | 104 | 5.206 | 0+ | Stable | ||||
| Hf177 | 176.9432 | 105 | 18.606 | 7/2- | Stable | ||||
| meta state 1.315MeV | Syn | 23/2+ | 1.08s | IT | 1.315 | ||||
| meta state 2.740MeV | Syn | 37/2- | 51.4m | IT | 2.740 | ||||
| Hf178 | 177.9437 | 106 | 27.297 | 0+ | Stable | ||||
| meta state 1.147MeV | Syn | 8- | 4s | IT | 1.147 | ||||
| meta state 2.446MeV | Syn | 16+ | 31y | IT | 2.446 | ||||
| Hf179 | 178.9458 | 107 | 13.629 | 9/2+ | Stable | ||||
| meta state 0.375MeV | Syn | 1/2- | 18.67s | IT | 0.375 | ||||
| meta state 1.106MeV | Syn | 25/2- | 25.05d | IT | 1.106 | ||||
| Hf180 | 179.9465 | 108 | 35.1 | 0+ | Stable | ||||
| meta state 1.141MeV | Syn | 8- | 5.5h | IT | 99.7 | 1.141 | |||
| 5.5h |  - | Ta180 | 0.3 | 1.287 | |||||
| Hf181 | 180.9491 | 109 | Syn | 1/2- | 42.39d | - | Ta181 | 1.027 | |
| Hf182 | 181.9506 | 110 | Syn | 0+ | 9E 6y | - | Ta182 | 0.373 | |
| meta state 1.173MeV | Syn | 8- | 61.5m | - | Ta182 | 58 | 1.546 | ||
| 61.5m | IT | 42 | 1.173 | ||||||
| Hf183 | 182.9535 | 111 | Syn | 3/2- | 1.067h | - | Ta183 | 2.010 | |
| Hf184 | 183.9554 | 112 | Syn | 0+ | 4.12h | - | Ta184 | 1.340 | |
| meta state 0.000MeV | Syn | 8- | 48s | - | Ta184 | 1.340 | |||
| Hf185 | 113 | Syn | 3.5m | ||||||
| Hf186 | 114 | Syn | 0+ | ||||||
| Nuclide | Potential Parent Nuclides |
|---|---|
| Hf154 | W158 (Syn) |
| meta state 2.671MeV | None known |
| Hf155 | Ta156 (Syn) W159 (Syn) |
| Hf156 | Ta156 (Syn) W160 (Syn) |
| Hf157 | W161 (Syn) |
| Hf158 | Ta158 (Syn) W162 (Syn) |
| Hf159 | Ta159 (Syn) W163 (Syn) |
| Hf160 | Ta160 (Syn) |
| Hf161 | Ta161 (Syn) W165 (Syn) |
| Hf162 | Ta162 (Syn) W166 (Syn) |
| Hf163 | Ta163 (Syn) W167 (Syn) |
| Hf164 | Ta164 (Syn) W168 (Syn) |
| Hf165 | Ta165 (Syn) |
| Hf166 | Ta166 (Syn) |
| Hf167 | Ta167 (Syn) |
| Hf168 | Ta168 (Syn) |
| Hf169 | Ta169 (Syn) |
| Hf170 | Ta170 (Syn) |
| Hf171 | Ta171 (Syn) |
| Hf172 | Ta172 (Syn) |
| Hf173 | Ta173 (Syn) |
| Hf174 | Ta174 (Syn) |
| Hf175 | Ta175 (Syn) |
| Hf176 | Lu176 (Natural) Lu176m (Syn) Ta176 (Syn) |
| Hf177 | Lu177 (Syn) Lu177m (Syn) Ta177 (Syn) |
| meta state 1.315MeV | None known |
| meta state 2.740MeV | None known |
| Hf178 | Lu178 (Syn) Lu178m (Syn) Ta178 (Syn) Ta178m (Syn) |
| meta state 1.147MeV | None known |
| meta state 2.446MeV | None known |
| Hf179 | Lu179 (Syn) Ta179 (Syn) |
| meta state 0.375MeV | None known |
| meta state 1.106MeV | None known |
| Hf180 | Lu180 (Syn) Ta180 (Natural) Ta180m (Syn) W184 (Natural) |
| meta state 1.141MeV | None known |
| Hf181 | Lu181 (Syn) |
| Hf182 | Lu182 (Syn) |
| meta state 1.173MeV | None known |
| Hf183 | Lu183 (Syn) |
| Hf184 | Lu184 (Syn) Lu184m (Syn) |
| meta state 0.000MeV | None known |
| Hf185 | None known |
| Hf186 | None known |
Key:
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