It's Elemental
Isotopes of the Element Neodymium
Neodymium
Most of the isotope data on this site has been obtained from the National Nuclear Data Center. Please visit their site for more information.
Isotopes With A Known Natural Abundance
| Mass Number | Natural Abundance | Half-life |
| 142 | 27.152% | STABLE |
| 143 | 12.174% | STABLE |
| 144 | 23.798% | 2.29×10+15 years |
| 145 | 8.293% | STABLE |
| 146 | 17.189% | STABLE |
| 148 | 5.756% | STABLE |
| 150 | 5.638% | 0.79×1019 years |
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 124 | No Data Available | Electron Capture (suspected) | No Data Available |
| 125 | 0.65 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | > 0.00% | ||
| 126 | > 200 nanoseconds | Electron Capture | No Data Available |
| Electron Capture with delayed Proton Emission | No Data Available | ||
| 127 | 1.8 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | No Data Available | ||
| 128 | 5 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | No Data Available | ||
| 129 | 4.9 seconds | Electron Capture | > 0.00% |
| Electron Capture with delayed Proton Emission | > 0.00% | ||
| 130 | 21 seconds | Electron Capture | 100.00% |
| 131 | 25.4 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | > 0.00% | ||
| 132 | 94 seconds | Electron Capture | 100.00% |
| 133 | 70 seconds | Electron Capture | 100.00% |
| 133m | ≈ 70 seconds | Electron Capture | No Data Available |
| Isomeric Transition | No Data Available | ||
| 134 | 8.5 minutes | Electron Capture | 100.00% |
| 135 | 12.4 minutes | Electron Capture | 100.00% |
| 135m | 5.5 minutes | Electron Capture | > 99.97% |
| Isomeric Transition | < 0.03% | ||
| 136 | 50.65 minutes | Electron Capture | 100.00% |
| 137 | 38.5 minutes | Electron Capture | 100.00% |
| 137m | 1.60 seconds | Isomeric Transition | 100.00% |
| 138 | 5.04 hours | Electron Capture | 100.00% |
| 139 | 29.7 minutes | Electron Capture | 100.00% |
| 139m | 5.50 hours | Electron Capture | 88.20% |
| Isomeric Transition | 11.80% | ||
| 140 | 3.37 days | Electron Capture | 100.00% |
| 140m | 0.60 milliseconds | Isomeric Transition | 100.00% |
| 141 | 2.49 hours | Electron Capture | 100.00% |
| 141m | 62.0 seconds | Isomeric Transition | 100.00% |
| Electron Capture | < 0.05% | ||
| 142 | STABLE | - | - |
| 143 | STABLE | - | - |
| 144 | 2.29×10+15 years | Alpha Decay | 100.00% |
| 145 | STABLE | - | - |
| 146 | STABLE | - | - |
| 147 | 10.98 days | Beta-minus Decay | 100.00% |
| 148 | STABLE | - | - |
| 149 | 1.728 hours | Beta-minus Decay | 100.00% |
| 150 | 0.79×1019 years | No Data Available | No Data Available |
| 151 | 12.44 minutes | Beta-minus Decay | 100.00% |
| 152 | 11.4 minutes | Beta-minus Decay | 100.00% |
| 153 | 31.6 seconds | Beta-minus Decay | 100.00% |
| 154 | 25.9 seconds | Beta-minus Decay | 100.00% |
| 155 | 8.9 seconds | Beta-minus Decay | 100.00% |
| 156 | 5.06 seconds | Beta-minus Decay | 100.00% |
| 157 | > 100 nanoseconds | Beta-minus Decay (suspected) | No Data Available |
| 158 | > 50 nanoseconds | Beta-minus Decay | 100.00% |
| 159 | No Data Available | Beta-minus Decay (suspected) | No Data Available |
| 160 | No Data Available | Beta-minus Decay (suspected) | No Data Available |
| 161 | No Data Available | Beta-minus Decay (suspected) | No Data Available |
Citation and linking information
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