It's Elemental
Isotopes of the Element Dysprosium
Dysprosium
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 |
| 156 | 0.056% | STABLE |
| 158 | 0.095% | STABLE |
| 160 | 2.329% | STABLE |
| 161 | 18.889% | STABLE |
| 162 | 25.475% | STABLE |
| 163 | 24.896% | STABLE |
| 164 | 28.260% | STABLE |
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 138 | No Data Available | Electron Capture (suspected) | No Data Available |
| 139 | 0.6 seconds | Electron Capture | No Data Available |
| Electron Capture with delayed Proton Emission | No Data Available | ||
| 140 | No Data Available | Electron Capture | No Data Available |
| 141 | 0.9 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | No Data Available | ||
| 142 | 2.3 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | 0.06% | ||
| 143 | 5.6 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | No Data Available | ||
| 143m | 3.0 seconds | Electron Capture with delayed Proton Emission | No Data Available |
| Electron Capture | 100.00% | ||
| 144 | 9.1 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | No Data Available | ||
| 145 | 6 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | ~ 50.00% | ||
| 145m | 14.1 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | ~ 50.00% | ||
| 146 | 29 seconds | Electron Capture | 100.00% |
| 146m | 150 milliseconds | Isomeric Transition | 100.00% |
| 147 | 67 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | 0.05% | ||
| 147m | 55.2 seconds | Electron Capture | 68.90% |
| Isomeric Transition | 31.10% | ||
| 148 | 3.3 minutes | Electron Capture | 100.00% |
| 149 | 4.20 minutes | Electron Capture | 100.00% |
| 149m | 0.490 seconds | Isomeric Transition | 99.30% |
| Electron Capture | 0.70% | ||
| 150 | 7.17 minutes | Electron Capture | 64.00% |
| Alpha Decay | 36.00% | ||
| 151 | 17.9 minutes | Electron Capture | 94.40% |
| Alpha Decay | 5.60% | ||
| 152 | 2.38 hours | Electron Capture | 99.90% |
| Alpha Decay | 0.10% | ||
| 153 | 6.4 hours | Electron Capture | 99.99% |
| Alpha Decay | 9.4×10-3 % | ||
| 154 | 3.0×10+6 years | Alpha Decay | 100.00% |
| 155 | 9.9 hours | Electron Capture | 100.00% |
| 156 | STABLE | - | - |
| 157 | 8.14 hours | Electron Capture | 100.00% |
| 157m | 21.6 milliseconds | Isomeric Transition | 100.00% |
| 158 | STABLE | - | - |
| 159 | 144.4 days | Electron Capture | 100.00% |
| 160 | STABLE | - | - |
| 161 | STABLE | - | - |
| 162 | STABLE | - | - |
| 163 | STABLE | - | - |
| 164 | STABLE | - | - |
| 165 | 2.334 hours | Beta-minus Decay | 100.00% |
| 165m | 1.257 minutes | Isomeric Transition | 97.76% |
| Beta-minus Decay | 2.24% | ||
| 166 | 81.6 hours | Beta-minus Decay | 100.00% |
| 167 | 6.20 minutes | Beta-minus Decay | 100.00% |
| 168 | 8.7 minutes | Beta-minus Decay | 100.00% |
| 169 | 39 seconds | Beta-minus Decay | 100.00% |
| 170 | No Data Available | Beta-minus Decay | 100.00% |
| 171 | No Data Available | Beta-minus Decay (suspected) | No Data Available |
| 172 | No Data Available | Beta-minus Decay (suspected) | No Data Available |
| 173 | No Data Available | Beta-minus Decay (suspected) | No Data Available |
Citation and linking information
For questions about this page, please contact Carol McKisson.