Periodic Table of Elements
Er - Erbium
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Nuclides / Isotopes
| Nuc- lide | Atomic Mass | NN | Abun % | Spin | Half Life | DM | DT | BR % | Decay Energy (MeV) |
|---|---|---|---|---|---|---|---|---|---|
| Er144 | 76 | Syn | 0+ | ||||||
| Er145 | 144.957 | 77 | Syn | 11/2- | 0.9s | ||||
| Er146 | 145.952 | 78 | Syn | 0+ | 1.7s |  + P | Dy145 | >0 | |
| 1.7s | | Ho146 | |||||||
| Er147 | 146.949 | 79 | Syn | 11/2- | 2.5s | + P | Dy146 | >0 | 8.400 |
| 2.5s | | Ho147 | 9.100 | ||||||
| meta state 0.000MeV | Syn | 1/2+ | ~2.5s | + P | Dy146 | >0 | 8.400 | ||
| ~2.5s | | Ho147 | 9.100 | ||||||
| Er148 | 147.944 | 80 | Syn | 0+ | 4.6s | | Ho148 | 6.800 | |
| Er149 | 148.942 | 81 | Syn | 1/2+ | 4s | + P | Dy148 | 7 | 6.700 |
| 4s | | Ho149 | 7.700 | ||||||
| meta state 0.742MeV | Syn | 11/2- | 8.9s | | Ho149 | 96.5 | 8.442 | ||
| 8.9s | IT | 3.5 | 0.742 | ||||||
| 8.9s | + P | Dy148 | 0.18 | 7.442 | |||||
| Er150 | 149.938 | 82 | Syn | 0+ | 18.5s | | Ho150 | 4.108 | |
| Er151 | 150.937 | 83 | Syn | 7/2- | 23.5s | | Ho151 | 5.400 | |
| meta state 2.585MeV | Syn | 27/2- | 0.58s | IT | 95.3 | 2.586 | |||
| 0.58s | | Ho151 | 4.7 | 7.986 | |||||
| Er152 | 151.9351 | 84 | Syn | 0+ | 10.3s |  | Dy148 | 90 | 4.934 |
| 10.3s | | Ho152 | 10 | 3.109 | |||||
| Er153 | 152.9351 | 85 | Syn | 7/2- | 37.1s | | Dy149 | 53 | 4.803 |
| 37.1s | | Ho153 | 47 | 4.564 | |||||
| Er154 | 153.9328 | 86 | Syn | 0+ | 3.73m | | Ho154 | 99.53 | 2.032 |
| 3.73m | | Dy150 | 0.47 | 4.280 | |||||
| meta state 3.025MeV | Syn | 11- | 39ns | IT | Er154 | ~100 | 3.025 | ||
| 39ns | | Dy150 | ~0 | 7.305 | |||||
| Er155 | 154.9332 | 87 | Syn | 7/2- | 5.3m | | Ho155 | 99.98 | 3.840 |
| 5.3m | | Dy151 | 0.02 | 4.120 | |||||
| Er156 | 155.931 | 88 | Syn | 0+ | 19.5m | | Dy152 | 0 | 1.370 |
| 19.5m | | Ho156 | 1.370 | ||||||
| Er157 | 156.9319 | 89 | Syn | 3/2- | 18.65m | | Ho157 | ~100 | 3.500 |
| 18.65m | | Dy153 | <0.02 | 3.300 | |||||
| meta state 0.155MeV | Syn | 9/2+ | 76ms | IT | Er157 | 0.155 | |||
| Er158 | 157.93 | 90 | Syn | 0+ | 2.29h | | Ho158 | 0.900 | |
| Er159 | 158.9307 | 91 | Syn | 3/2- | 36m | | Ho159 | 2.769 | |
| Er160 | 159.9291 | 92 | Syn | 0+ | 28.58h | | Ho160 | 0.330 | |
| Er161 | 160.93 | 93 | Syn | 3/2- | 3.21h | | Ho161 | ||
| Er162 | 161.9288 | 94 | 0.14 | 0+ | Stable | ||||
| Er163 | 162.93 | 95 | Syn | 5/2- | 75m | | Ho163 | 1.210 | |
| Er164 | 163.9292 | 96 | 1.61 | 0+ | Stable | ||||
| Er165 | 164.9307 | 97 | Syn | 5/2- | 10.36h | | Ho165 | 0.376 | |
| Er166 | 165.9303 | 98 | 33.6 | 0+ | Stable | ||||
| Er167 | 166.9321 | 99 | 22.95 | 7/2+ | Stable | ||||
| meta state 0.208MeV | Syn | 1/2- | 2.269s | IT | 0.208 | ||||
| Er168 | 167.9324 | 100 | 26.8 | 0+ | Stable | ||||
| Er169 | 168.9346 | 101 | Syn | 1/2- | 9.4d |  - | Tm169 | 0.351 | |
| Er170 | 169.9355 | 102 | 14.9 | 0+ | Stable | ||||
| Er171 | 170.938 | 103 | Syn | 5/2- | 7.516h | - | Tm171 | 1.490 | |
| Er172 | 171.9394 | 104 | Syn | 0+ | 49.3h | - | Tm172 | 0.891 | |
| Er173 | 172.942 | 105 | Syn | 7/2- | 1.4m | - | Tm173 | 2.600 | |
| Er174 | 173.944 | 106 | Syn | 0+ | 3.3m | - | Tm174 | 1.800 | |
| Er175 | 107 | Syn | 9/2+ | 1.2m | - | ||||
| Er176 | 108 | Syn | 0+ | ||||||
| Er177 | 109 | Syn | |||||||
| Nuclide | Potential Parent Nuclides |
|---|---|
| Er144 | None known |
| Er145 | Tm146 (Syn) Tm146m (Syn) |
| Er146 | Tm147 (Syn) Tm147m (Syn) |
| Er147 | Tm147 (Syn) |
| meta state 0.000MeV | None known |
| Er148 | Tm148 (Syn) |
| Er149 | Tm149 (Syn) Yb153 (Syn) |
| meta state 0.742MeV | None known |
| Er150 | Tm150 (Syn) Yb151 (Syn) Yb154 (Syn) |
| Er151 | Tm151 (Syn) Tm151m (Syn) Yb152 (Syn) Yb155 (Syn) |
| meta state 2.585MeV | None known |
| Er152 | Tm152 (Syn) Tm152m (Syn) Yb156 (Syn) |
| Er153 | Tm153 (Syn) Tm153m (Syn) Yb157 (Syn) |
| Er154 | Er154m (Syn) Tm154 (Syn) Tm154m (Syn) Yb158 (Syn) |
| meta state 3.025MeV | None known |
| Er155 | Tm155 (Syn) Tm155m (Syn) |
| Er156 | Tm156 (Syn) |
| Er157 | Er157m (Syn) Tm157 (Syn) |
| meta state 0.155MeV | None known |
| Er158 | Tm158 (Syn) |
| Er159 | Tm159 (Syn) |
| Er160 | Tm160 (Syn) Tm160m (Syn) |
| Er161 | Tm161 (Syn) |
| Er162 | Tm162 (Syn) Tm162m (Syn) |
| Er163 | Tm163 (Syn) |
| Er164 | Ho164 (Syn) Tm164 (Syn) Tm164m (Syn) |
| Er165 | Tm165 (Syn) |
| Er166 | Ho166 (Syn) Ho166m (Syn) Tm166 (Syn) |
| Er167 | Ho167 (Syn) Tm167 (Syn) |
| meta state 0.208MeV | None known |
| Er168 | Ho168 (Syn) Ho168m (Syn) Tm168 (Syn) |
| Er169 | Ho169 (Syn) |
| Er170 | Ho170 (Syn) Ho170m (Syn) Tm170 (Syn) |
| Er171 | Ho171 (Syn) |
| Er172 | None known |
| Er173 | None known |
| Er174 | None known |
| Er175 | None known |
| Er176 | None known |
| Er177 | None known |
Key:
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