Periodic Table of Elements
Pr - Praseodymium
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Nuclides / Isotopes
| Nuc- lide | Atomic Mass | NN | Abun % | Spin | Half Life | DM | DT | BR % | Decay Energy (MeV) |
|---|---|---|---|---|---|---|---|---|---|
| Pr121 | 62 | Syn | 1.4s | ||||||
| Pr122 | 121.952 | 63 | Syn | ||||||
| Pr123 | 122.946 | 64 | Syn | ||||||
| Pr124 | 123.943 | 65 | Syn | 1.2s |  | Ce124 | 11.600 | ||
| 1.2s | + P | La123 | 8.300 | ||||||
| Pr125 | 124.938 | 66 | Syn | 3.3s | |||||
| Pr126 | 125.935 | 67 | Syn | 3, 4, 5 | 3.14s | | Ce126 | >0 | 10.400 |
| 3.14s | + P | La125 | 6.300 | ||||||
| Pr127 | 126.931 | 68 | Syn | 11/2- | 4.2s | | Ce127 | 7.500 | |
| Pr128 | 127.929 | 69 | Syn | 4, 5, 6 | 3.1s | | Ce128 | 9.300 | |
| 3.1s | + P | La127 | 4.500 | ||||||
| Pr129 | 128.925 | 70 | Syn | 3/2+ | 30s | | Ce129 | >0 | 6.300 |
| Pr130 | 129.923 | 71 | Syn | 40s | | Ce130 | 8.100 | ||
| Pr131 | 130.92 | 72 | Syn | 3/2+ | 1.53m | | Ce131 | 5.250 | |
| meta state 0.152MeV | Syn | 11/2- | 5.7s | IT | 95 | 0.152 | |||
| 5.7s | | Ce131 | 5 | 5.402 | |||||
| Pr132 | 131.919 | 73 | Syn | 1.6m | | Ce132 | 7.100 | ||
| Pr133 | 132.916 | 74 | Syn | 3/2+ | 6.5m | | Ce133 | 4.300 | |
| Pr134 | 133.916 | 75 | Syn | 2- | 17m | | Ce134 | 6.200 | |
| meta state 0.000MeV | Syn | 5- | ~11m | | Ce134 | 6.200 | |||
| Pr135 | 134.913 | 76 | Syn | 3/2+ | 24m | | Ce135 | 3.720 | |
| Pr136 | 135.9126 | 77 | Syn | 2+ | 13.1m | | Ce136 | 5.126 | |
| Pr137 | 136.9107 | 78 | Syn | 5/2+ | 1.28h | | Ce137 | 2.702 | |
| Pr138 | 137.9107 | 79 | Syn | 1+ | 1.45m | | Ce138 | 4.437 | |
| meta state 0.364MeV | Syn | 7- | 2.12h | | Ce138 | 4.801 | |||
| Pr139 | 138.9089 | 80 | Syn | 5/2+ | 4.41h | | Ce139 | 2.129 | |
| Pr140 | 139.9091 | 81 | Syn | 1+ | 3.39m | | Ce140 | 3.388 | |
| Pr141 | 140.9077 | 82 | 100. | 5/2+ | Stable | ||||
| Pr142 | 141.91 | 83 | Syn | 2- | 19.12h |  - | Nd142 | 99.98 | 2.162 |
| 19.12h | | Ce142 | 0.02 | 0.745 | |||||
| meta state 0.004MeV | Syn | 5- | 14.6m | IT | 0.004 | ||||
| Pr143 | 142.9108 | 84 | Syn | 7/2+ | 13.57d | - | Nd143 | 0.934 | |
| Pr144 | 143.9133 | 85 | Syn | 0- | 17.28m | - | Nd144 | 2.997 | |
| meta state 0.059MeV | Syn | 3- | 7.2m | IT | 99.93 | 0.059 | |||
| 7.2m | - | Nd144 | 0.07 | 3.056 | |||||
| Pr145 | 144.9145 | 86 | Syn | 7/2+ | 5.984h | - | Nd145 | 1.805 | |
| Pr146 | 145.9176 | 87 | Syn | 2- | 24.15m | - | Nd146 | 4.200 | |
| Pr147 | 146.919 | 88 | Syn | 3/2+ | 13.4m | - | Nd147 | 2.690 | |
| Pr148 | 147.9222 | 89 | Syn | 1- | 2.27m | - | Nd148 | 4.930 | |
| meta state 0.090MeV | Syn | 4 | 2m | - | Nd148 | 5.020 | |||
| Pr149 | 148.9238 | 90 | Syn | 5/2+ | 2.26m | - | Nd149 | 3.397 | |
| Pr150 | 149.927 | 91 | Syn | 1- | 6.19s | - | Nd150 | 5.690 | |
| Pr151 | 150.9282 | 92 | Syn | 3/2- | 18.9s | - | Nd151 | 4.100 | |
| Pr152 | 151.932 | 93 | Syn | 4- | 3.63s | - | Nd152 | 6.400 | |
| Pr153 | 152.934 | 94 | Syn | 4.28s | - | Nd153 | 5.500 | ||
| Pr154 | 153.937 | 95 | Syn | 3+, 2+ | 2.3s | - | Nd154 | 7.900 | |
| Pr155 | 154.94 | 96 | Syn | ||||||
| Pr156 | 155.944 | 97 | Syn | ||||||
| Pr157 | 156.947 | 98 | Syn | ||||||
| Pr158 | 157.952 | 99 | Syn | ||||||
| Pr159 | 158.955 | 100 | Syn | ||||||
| Nuclide | Potential Parent Nuclides |
|---|---|
| Pr121 | None known |
| Pr122 | None known |
| Pr123 | None known |
| Pr124 | None known |
| Pr125 | None known |
| Pr126 | None known |
| Pr127 | Nd127 (Syn) |
| Pr128 | Nd128 (Syn) |
| Pr129 | Nd129 (Syn) Pm130 (Syn) |
| Pr130 | Nd130 (Syn) |
| Pr131 | Nd131 (Syn) Pm132 (Syn) |
| meta state 0.152MeV | None known |
| Pr132 | Nd132 (Syn) |
| Pr133 | Nd133 (Syn) |
| Pr134 | Nd134 (Syn) |
| meta state 0.000MeV | None known |
| Pr135 | Nd135 (Syn) Nd135m (Syn) |
| Pr136 | Nd136 (Syn) |
| Pr137 | Nd137 (Syn) |
| Pr138 | Nd138 (Syn) |
| meta state 0.364MeV | None known |
| Pr139 | Nd139 (Syn) Nd139m (Syn) |
| Pr140 | Nd140 (Syn) |
| Pr141 | Ce141 (Syn) Nd141 (Syn) Nd141m (Syn) Pm145 (Syn) |
| Pr142 | None known |
| meta state 0.004MeV | None known |
| Pr143 | Ce143 (Syn) |
| Pr144 | Ce144 (Syn) |
| meta state 0.059MeV | None known |
| Pr145 | Ce145 (Syn) |
| Pr146 | Ce146 (Syn) |
| Pr147 | Ce147 (Syn) |
| Pr148 | Ce148 (Syn) |
| meta state 0.090MeV | None known |
| Pr149 | Ce149 (Syn) |
| Pr150 | Ce150 (Syn) |
| Pr151 | Ce151 (Syn) |
| Pr152 | Ce152 (Syn) |
| Pr153 | None known |
| Pr154 | None known |
| Pr155 | None known |
| Pr156 | None known |
| Pr157 | None known |
| Pr158 | None known |
| Pr159 | None known |
Key:
| |
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