It's Elemental
Isotopes of the Element Germanium
Germanium
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 |
| 70 | 20.57% | STABLE |
| 72 | 27.45% | STABLE |
| 73 | 7.75% | STABLE |
| 74 | 36.50% | STABLE |
| 76 | 7.73% | STABLE |
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 58 | No Data Available | Double Proton Emission (suspected) | No Data Available |
| 59 | No Data Available | Double Proton Emission (suspected) | No Data Available |
| 60 | > 110 nanoseconds | Electron Capture with delayed Proton Emission | No Data Available |
| Electron Capture | No Data Available | ||
| 61 | 44 milliseconds | Electron Capture with delayed Proton Emission | > 58.00% |
| Electron Capture | 100.00% | ||
| 62 | 129 milliseconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | No Data Available | ||
| 63 | 150 milliseconds | Electron Capture | 100.00% |
| 64 | 63.7 seconds | Electron Capture | 100.00% |
| 65 | 30.9 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | 0.01% | ||
| 66 | 2.26 hours | Electron Capture | 100.00% |
| 67 | 18.9 minutes | Electron Capture | 100.00% |
| 68 | 270.95 days | Electron Capture | 100.00% |
| 69 | 39.05 hours | Electron Capture | 100.00% |
| 70 | STABLE | - | - |
| 71 | 11.43 days | Electron Capture | 100.00% |
| 71m | 20.41 milliseconds | Isomeric Transition | 100.00% |
| 72 | STABLE | - | - |
| 73 | STABLE | - | - |
| 73m | 0.499 seconds | Isomeric Transition | 100.00% |
| 74 | STABLE | - | - |
| 75 | 82.78 minutes | Beta-minus Decay | 100.00% |
| 75m | 47.7 seconds | Isomeric Transition | 99.97% |
| Beta-minus Decay | 0.03% | ||
| 76 | STABLE | - | - |
| 77 | 11.30 hours | Beta-minus Decay | 100.00% |
| 77m | 52.9 seconds | Beta-minus Decay | 81.00% |
| Isomeric Transition | 19.00% | ||
| 78 | 88.0 minutes | Beta-minus Decay | 100.00% |
| 79 | 18.98 seconds | Beta-minus Decay | 100.00% |
| 79m | 39.0 seconds | Beta-minus Decay | 96.00% |
| Isomeric Transition | 4.00% | ||
| 80 | 29.5 seconds | Beta-minus Decay | 100.00% |
| 81 | 7.6 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay | 100.00% | ||
| 82 | 4.56 seconds | Beta-minus Decay | 100.00% |
| 83 | 1.85 seconds | Beta-minus Decay | 100.00% |
| 84 | 0.954 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 10.20% | ||
| 85 | 0.56 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 14.00% | ||
| 86 | > 150 nanoseconds | Beta-minus Decay | No Data Available |
| Beta-minus Decay with delayed Neutron Emission | No Data Available | ||
| 87 | ≈ 0.14 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | No Data Available | ||
| 88 | >= 300 nanoseconds | Beta-minus Decay | 100.00% |
| 89 | >= 300 nanoseconds | Beta-minus Decay (suspected) | No Data Available |
| 90 | > 635 nanoseconds | Beta-minus Decay | No Data Available |
| Beta-minus Decay with delayed Neutron Emission | No Data Available | ||
| Beta-minus Decay with delayed Double Neutron Emission | No Data Available |
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