Periodic Table of Elements
Pm - Promethium
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Nuclides / Isotopes
| Nuc- lide | Atomic Mass | NN | Abun % | Spin | Half Life | DM | DT | BR % | Decay Energy (MeV) |
|---|---|---|---|---|---|---|---|---|---|
| Pm128 | 127.948 | 67 | Syn | ||||||
| Pm129 | 128.943 | 68 | Syn | ||||||
| Pm130 | 129.94 | 69 | Syn | 2.2s |  | Nd130 | 10.900 | ||
| 2.2s | + P | Pr129 | 7.200 | ||||||
| Pm131 | 130.936 | 70 | Syn | ||||||
| Pm132 | 131.934 | 71 | Syn | 3+ | 6.3s | + P | Pr131 | ~5.0E -5 | 5.500 |
| 6.3s | | Nd132 | 9.900 | ||||||
| Pm133 | 132.93 | 72 | Syn | 3/2+ | | Nd133 | 7.000 | ||
| Pm134 | 133.928 | 73 | Syn | 2+ | ~5s | | Nd134 | 8.900 | |
| meta state 0.000MeV | Syn | 5+ | 22s | | Nd134 | 8.900 | |||
| Pm135 | 134.925 | 74 | Syn | 11/2- | 45s | | Nd135 | 5.940 | |
| meta state 0.000MeV | Syn | 2+, 5/2+ | 49s | | Nd135 | 5.940 | |||
| Pm136 | 135.923 | 75 | Syn | 2+ | 47s | | Nd136 | 7.850 | |
| meta state 0.000MeV | Syn | 5- | 107s | | Nd136 | 7.850 | |||
| Pm137 | 136.921 | 76 | Syn | 11/2- | 2.4m | | Nd137 | 5.580 | |
| Pm138 | 137.919 | 77 | Syn | 1+ | 10s | | Nd138 | 6.900 | |
| meta state 0.000MeV | Syn | 5- | 3.24m | | Nd138 | 6.900 | |||
| Pm139 | 138.9168 | 78 | Syn | 5/2+ | 4.15m | | Nd139 | 4.520 | |
| meta state 0.189MeV | Syn | 11/2- | 180ms | | Nd139 | 4.709 | |||
| 180ms | IT | 0.189 | |||||||
| Pm140 | 139.9158 | 79 | Syn | 1+ | 9.2s | | Nd140 | 6.090 | |
| meta state 0.000MeV | Syn | 7- | 5.95m | | Nd140 | 6.090 | |||
| Pm141 | 140.9136 | 80 | Syn | 5/2+ | 20.9m | | Nd141 | 3.715 | |
| Pm142 | 141.913 | 81 | Syn | 1+ | 40.5s | | Nd142 | 4.870 | |
| Pm143 | 142.9109 | 82 | Syn | 5/2+ | 265d | | Nd143 | 1.041 | |
| Pm144 | 143.9126 | 83 | Syn | 5- | 363d | | Nd144 | 2.332 | |
| Pm145 | 144.9127 | 84 | Syn | 5/2+ | 17.7y |  | Pr141 | 3.0E -7 | 2.322 |
| 17.7y | | Nd145 | 0.163 | ||||||
| Pm146 | 145.9147 | 85 | Syn | 3- | 5.53y | | Nd146 | 66 | 1.472 |
| 5.53y |  - | Sm146 | 34 | 1.542 | |||||
| Pm147 | 146.9151 | 86 | Syn | 7/2+ | 2.6234y | - | Sm147 | 0.224 | |
| Pm148 | 147.9175 | 87 | Syn | 1- | 5.370d | - | Sm148 | 2.468 | |
| meta state 0.138MeV | Syn | 6- | 41.29d | - | Sm148 | 95 | 2.606 | ||
| 41.29d | IT | 5 | 0.138 | ||||||
| Pm149 | 148.9183 | 88 | Syn | 7/2+ | 53.08h | - | Sm149 | 1.071 | |
| Pm150 | 149.921 | 89 | Syn | 1- | 2.68h | - | Sm150 | 3.454 | |
| Pm151 | 150.9212 | 90 | Syn | 5/2+ | 28.4h | - | Sm151 | 1.187 | |
| Pm152 | 151.9235 | 91 | Syn | 1+ | 4.12m | - | Sm152 | 3.500 | |
| meta state 0.150MeV | Syn | 4- | 7.52m | - | Sm152 | 3.650 | |||
| Pm153 | 152.9241 | 92 | Syn | 5/2- | 5.25m | - | Sm153 | 1.900 | |
| Pm154 | 153.9265 | 93 | Syn | 0, 1 | 1.73m | - | Sm154 | 4.050 | |
| meta state 0.000MeV | Syn | 3, 4 | 2.68m | - | Sm154 | 4.050 | |||
| Pm155 | 154.9281 | 94 | Syn | 5/2- | 41.5s | - | Sm155 | 3.170 | |
| Pm156 | 155.9311 | 95 | Syn | 4- | 26.7s | - | Sm156 | 5.160 | |
| Pm157 | 156.933 | 96 | Syn | 5/2- | 10.56s | - | Sm157 | 4.500 | |
| Pm158 | 157.937 | 97 | Syn | 4.8s | - | Sm158 | 6.200 | ||
| Pm159 | 158.939 | 98 | Syn | ||||||
| Pm160 | 159.943 | 99 | Syn | ||||||
| Pm161 | 160.946 | 100 | Syn | ||||||
| Pm162 | 161.95 | 101 | Syn | ||||||
| Pm163 | 162.954 | 102 | Syn | ||||||
| Nuclide | Potential Parent Nuclides |
|---|---|
| Pm128 | None known |
| Pm129 | None known |
| Pm130 | None known |
| Pm131 | Sm131 (Syn) |
| Pm132 | Sm132 (Syn) |
| Pm133 | Eu134 (Syn) Sm133 (Syn) |
| Pm134 | Eu135 (Syn) Sm134 (Syn) |
| meta state 0.000MeV | None known |
| Pm135 | Eu136 (Syn) Eu136m (Syn) Sm135 (Syn) |
| meta state 0.000MeV | None known |
| Pm136 | Sm136 (Syn) |
| meta state 0.000MeV | None known |
| Pm137 | Sm137 (Syn) |
| Pm138 | Sm138 (Syn) |
| meta state 0.000MeV | None known |
| Pm139 | Sm139 (Syn) |
| meta state 0.189MeV | None known |
| Pm140 | Sm140 (Syn) |
| meta state 0.000MeV | None known |
| Pm141 | Sm141 (Syn) Sm141m (Syn) |
| Pm142 | Sm142 (Syn) |
| Pm143 | Eu147 (Syn) Sm143 (Syn) Sm143m (Syn) |
| Pm144 | Eu148 (Syn) |
| Pm145 | Sm145 (Syn) |
| Pm146 | None known |
| Pm147 | Nd147 (Syn) |
| Pm148 | None known |
| meta state 0.138MeV | None known |
| Pm149 | Nd149 (Syn) |
| Pm150 | None known |
| Pm151 | Nd151 (Syn) |
| Pm152 | Nd152 (Syn) |
| meta state 0.150MeV | None known |
| Pm153 | Nd153 (Syn) |
| Pm154 | Nd154 (Syn) |
| meta state 0.000MeV | None known |
| Pm155 | Nd155 (Syn) |
| Pm156 | Nd156 (Syn) |
| Pm157 | None known |
| Pm158 | None known |
| Pm159 | None known |
| Pm160 | None known |
| Pm161 | None known |
| Pm162 | None known |
| Pm163 | None known |
Key:
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