| Nuc- lide | Atomic Mass | NN | Abun % | Spin | Half Life | DM | DT | BR % | Decay Energy (MeV) |
|---|---|---|---|---|---|---|---|---|---|
| Nd126 | 125.943 | 66 | Syn | ||||||
| Nd127 | 126.941 | 67 | Syn | 1.8s | ε | Pr127 | 9.000 | ||
| 1.8s | ε + P | Ce126 | 8.000 | ||||||
| Nd128 | 127.935 | 68 | Syn | 0+ | 4s | ε | Pr128 | 6.100 | |
| Nd129 | 128.933 | 69 | Syn | 5/2+ | 7s | ε | Pr129 | >0 | 7.800 |
| 7s | ε + P | Ce128 | >0 | 6.110 | |||||
| Nd130 | 129.929 | 70 | Syn | 0+ | 28s | ε | Pr130 | 5.000 | |
| Nd131 | 130.927 | 71 | Syn | 5/2 | 27s | ε | Pr131 | 6.560 | |
| 27s | ε + P | Ce130 | 4.300 | ||||||
| Nd132 | 131.923 | 72 | Syn | 0+ | 1.75m | ε | Pr132 | 3.700 | |
| Nd133 | 132.922 | 73 | Syn | 7/2+ | 70s | ε | Pr133 | 5.600 | |
| meta state 0.128MeV | Syn | 1/2+ | ~70s | ||||||
| Nd134 | 133.919 | 74 | Syn | 0+ | 8.5m | ε | Pr134 | 2.770 | |
| meta state 2.293MeV | Syn | 8- | 410us | IT | 2.293 | ||||
| Nd135 | 134.918 | 75 | Syn | 9/2- | 12.4m | ε | Pr135 | 4.800 | |
| meta state 0.065MeV | Syn | 1/2+ | 5.5m | ε | Pr135 | 4.865 | |||
| Nd136 | 135.915 | 76 | Syn | 0+ | 50.65m | ε | Pr136 | 2.210 | |
| Nd137 | 136.9146 | 77 | Syn | 1/2+ | 38.5m | ε | Pr137 | 3.690 | |
| meta state 0.519MeV | Syn | 11/2- | 1.6s | IT | 0.520 | ||||
| Nd138 | 137.912 | 78 | Syn | 0+ | 5.04h | ε | Pr138 | 1.100 | |
| Nd139 | 138.9119 | 79 | Syn | 3/2+ | 29.7m | ε | Pr139 | 2.790 | |
| meta state 0.231MeV | Syn | 11/2- | 5.5h | ε | Pr139 | 88.2 | 3.021 | ||
| 5.5h | IT | 11.8 | 0.231 | ||||||
| Nd140 | 139.9093 | 80 | Syn | 0+ | 3.37d | ε | Pr140 | 0.222 | |
| meta state 2.221MeV | Syn | 7- | 0.6ms | IT | 2.221 | ||||
| Nd141 | 140.9096 | 81 | Syn | 3/2+ | 2.49h | ε | Pr141 | 1.823 | |
| meta state 0.757MeV | Syn | 11/2- | 62s | ε | Pr141 | <0.05 | 2.580 | ||
| 62s | IT | 0.757 | |||||||
| Nd142 | 141.9077 | 82 | 27.13 | 0+ | Stable | ||||
| Nd143 | 142.9098 | 83 | 12.18 | 7/2- | Stable | ||||
| Nd144 | 143.9101 | 84 | 23.8 | 0+ | 2.29E 15y | α | Ce140 | 1.905 | |
| Nd145 | 144.9126 | 85 | 8.3 | 7/2- | Stable | ||||
| Nd146 | 145.9131 | 86 | 17.19 | 0+ | Stable | ||||
| Nd147 | 146.9161 | 87 | Syn | 5/2- | 10.98d | β- | Pm147 | 0.896 | |
| Nd148 | 147.9169 | 88 | 5.76 | 0+ | Stable | ||||
| Nd149 | 148.9201 | 89 | Syn | 5/2- | 1.782h | β- | Pm149 | 1.691 | |
| Nd150 | 149.9209 | 90 | 5.64 | 0+ | >1.1E 19y | β- | Sm150 | 3.367 | |
| Nd151 | 150.9238 | 91 | Syn | 3/2+ | 12.44m | β- | Pm151 | 2.442 | |
| Nd152 | 151.9247 | 92 | Syn | 0+ | 11.4m | β- | Pm152 | 1.110 | |
| Nd153 | 152.9277 | 93 | Syn | 3/2- | 31.6s | β- | Pm153 | 3.600 | |
| Nd154 | 153.929 | 94 | Syn | 0+ | 25.9s | β- | Pm154 | 2.740 | |
| Nd155 | 154.933 | 95 | Syn | 8.9s | β- | Pm155 | 5.000 | ||
| Nd156 | 155.935 | 96 | Syn | 0+ | 5.47s | β- | Pm156 | 4.100 | |
| Nd157 | 156.939 | 97 | Syn | ||||||
| Nd158 | 157.942 | 98 | Syn | 0+ | |||||
| Nd159 | 158.946 | 99 | Syn | ||||||
| Nd160 | 159.949 | 100 | Syn | 0+ | |||||
| Nd161 | 160.954 | 101 | Syn | ||||||
| Nuclide | Potential Parent Nuclides |
|---|---|
| Nd126 | None known |
| Nd127 | None known |
| Nd128 | None known |
| Nd129 | None known |
| Nd130 | Pm130 (Syn) Sm131 (Syn) |
| Nd131 | Sm132 (Syn) |
| Nd132 | Pm132 (Syn) Sm133 (Syn) |
| Nd133 | Pm133 (Syn) |
| meta state 0.128MeV | None known |
| Nd134 | Pm134 (Syn) Pm134m (Syn) Sm135 (Syn) |
| meta state 2.293MeV | None known |
| Nd135 | Pm135 (Syn) Pm135m (Syn) |
| meta state 0.065MeV | None known |
| Nd136 | Pm136 (Syn) Pm136m (Syn) |
| Nd137 | Pm137 (Syn) |
| meta state 0.519MeV | None known |
| Nd138 | Pm138 (Syn) Pm138m (Syn) |
| Nd139 | Pm139 (Syn) Pm139m (Syn) |
| meta state 0.231MeV | None known |
| Nd140 | Pm140 (Syn) Pm140m (Syn) |
| meta state 2.221MeV | None known |
| Nd141 | Pm141 (Syn) |
| meta state 0.757MeV | None known |
| Nd142 | Ce142 (Natural) Pm142 (Syn) Pr142 (Syn) Sm146 (Syn) |
| Nd143 | Pm143 (Syn) Pr143 (Syn) Sm147 (Natural) |
| Nd144 | Pm144 (Syn) Pr144 (Syn) Pr144m (Syn) Sm148 (Natural) |
| Nd145 | Pm145 (Syn) Pr145 (Syn) Sm149 (Natural) |
| Nd146 | Pm146 (Syn) Pr146 (Syn) |
| Nd147 | Pr147 (Syn) |
| Nd148 | Pr148 (Syn) Pr148m (Syn) |
| Nd149 | Pr149 (Syn) |
| Nd150 | Pr150 (Syn) |
| Nd151 | Pr151 (Syn) |
| Nd152 | Pr152 (Syn) |
| Nd153 | Pr153 (Syn) |
| Nd154 | Pr154 (Syn) |
| Nd155 | None known |
| Nd156 | None known |
| Nd157 | None known |
| Nd158 | None known |
| Nd159 | None known |
| Nd160 | None known |
| Nd161 | None known |
Key:
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Kenneth Barbalace. Periodic Table of Elements - Nd - Neodymium. EnvironmentalChemistry.com. 1995 - 2024. Accessed on-line: 4/25/2024
https://EnvironmentalChemistry.com/yogi/periodic/Nd-pg2.html
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