It's Elemental
Isotopes of the Element Niobium
Niobium
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 |
| 93 | 100% | STABLE |
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 81 | < 200 nanoseconds | Electron Capture | No Data Available |
| 82 | 50 milliseconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | No Data Available | ||
| 83 | 3.8 seconds | Electron Capture | 100.00% |
| 84 | 9.8 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | No Data Available | ||
| 85 | 20.5 seconds | Electron Capture | 100.00% |
| 85m | 12 seconds | Electron Capture | No Data Available |
| Isomeric Transition | No Data Available | ||
| 85m1 | 3.3 seconds | Isomeric Transition | No Data Available |
| Electron Capture | No Data Available | ||
| 86 | 88 seconds | Electron Capture | 100.00% |
| 87 | 3.75 minutes | Electron Capture | 100.00% |
| 87m | 2.6 minutes | Electron Capture | No Data Available |
| 88 | 14.55 minutes | Electron Capture | 100.00% |
| 88m | 7.78 minutes | Electron Capture | 100.00% |
| 89 | 2.03 hours | Electron Capture | 100.00% |
| 89m | 66 minutes | Electron Capture | 100.00% |
| 90 | 14.60 hours | Electron Capture | 100.00% |
| 90m | 18.81 seconds | Isomeric Transition | 100.00% |
| 91 | 6.8×10+2 years | Electron Capture | 100.00% |
| 91m | 60.86 days | Isomeric Transition | 96.60% |
| Electron Capture | 3.40% | ||
| 92 | 3.47×10+7 years | Electron Capture | 100.00% |
| Beta-minus Decay | < 0.05% | ||
| 92m | 10.15 days | Electron Capture | 100.00% |
| 93 | STABLE | - | - |
| 93m | 16.12 years | Isomeric Transition | 100.00% |
| 94 | 2.03×10+4 years | Beta-minus Decay | 100.00% |
| 94m | 6.263 minutes | Isomeric Transition | 99.50% |
| Beta-minus Decay | 0.50% | ||
| 95 | 34.991 days | Beta-minus Decay | 100.00% |
| 95m | 3.61 days | Isomeric Transition | 94.40% |
| Beta-minus Decay | 5.60% | ||
| 96 | 23.35 hours | Beta-minus Decay | 100.00% |
| 97 | 72.1 minutes | Beta-minus Decay | 100.00% |
| 97m | 58.7 seconds | Isomeric Transition | 100.00% |
| 98 | 2.86 seconds | Beta-minus Decay | 100.00% |
| 98m | 51.3 minutes | Beta-minus Decay | 99.90% |
| Isomeric Transition | < 0.20% | ||
| 99 | 15.0 seconds | Beta-minus Decay | 100.00% |
| 99m | 2.5 minutes | Isomeric Transition | < 3.80% |
| Beta-minus Decay | > 96.20% | ||
| 100 | 1.5 seconds | Beta-minus Decay | 100.00% |
| 100m | 2.99 seconds | Beta-minus Decay | 100.00% |
| 101 | 7.1 seconds | Beta-minus Decay | 100.00% |
| 102 | 4.3 seconds | Beta-minus Decay | 100.00% |
| 102m | 1.3 seconds | Beta-minus Decay | 100.00% |
| 103 | 1.5 seconds | Beta-minus Decay | 100.00% |
| 104 | 4.9 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 0.06% | ||
| 104m | 0.94 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 0.05% | ||
| 105 | 2.95 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 1.70% | ||
| 106 | 0.93 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 4.50% | ||
| 107 | 300 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 8.00% | ||
| 108 | 220 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 8.00% | ||
| 109 | 106 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | < 15.00% | ||
| 110 | 86 milliseconds | Beta-minus Decay with delayed Neutron Emission | 40.00% |
| Beta-minus Decay | 100.00% | ||
| 111 | 51 milliseconds | Beta-minus Decay | No Data Available |
| 112 | 33 milliseconds | Beta-minus Decay | No Data Available |
| 113 | > 300 nanoseconds | Beta-minus Decay | No Data Available |
| 114 | > 392 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 | ||
| 115 | > 394 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 |
Citation and linking information
For questions about this page, please contact Carol McKisson.