It's Elemental
Isotopes of the Element Bromine
Bromine
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 |
| 79 | 50.69% | STABLE |
| 81 | 49.31% | STABLE |
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 67 | No Data Available | Proton Emission (suspected) | No Data Available |
| 68 | 1.2 microseconds | Proton Emission (suspected) | No Data Available |
| 69 | 24 nanoseconds | Proton Emission (suspected) | No Data Available |
| 70 | 79.1 milliseconds | Electron Capture | 100.00% |
| 70m | 2.2 seconds | Electron Capture | 100.00% |
| 71 | 21.4 seconds | Electron Capture | 100.00% |
| 72 | 78.6 seconds | Electron Capture | 100.00% |
| 72m | 10.6 seconds | Isomeric Transition | 100.00% |
| Electron Capture | No Data Available | ||
| 73 | 3.4 minutes | Electron Capture | 100.00% |
| 74 | 25.4 minutes | Electron Capture | 100.00% |
| 74m | 46 minutes | Electron Capture | 100.00% |
| 75 | 96.7 minutes | Electron Capture | 100.00% |
| 76 | 16.2 hours | Electron Capture | 100.00% |
| 76m | 1.31 seconds | Isomeric Transition | > 99.40% |
| Electron Capture | < 0.60% | ||
| 77 | 57.036 hours | Electron Capture | 100.00% |
| 77m | 4.28 minutes | Isomeric Transition | 100.00% |
| 78 | 6.45 minutes | Electron Capture | >= 99.99% |
| Beta-minus Decay | <= 0.01% | ||
| 79 | STABLE | - | - |
| 79m | 5.1 seconds | Isomeric Transition | 100.00% |
| 80 | 17.68 minutes | Beta-minus Decay | 91.70% |
| Electron Capture | 8.30% | ||
| 80m | 4.4205 hours | Isomeric Transition | 100.00% |
| 81 | STABLE | - | - |
| 82 | 35.282 hours | Beta-minus Decay | 100.00% |
| 82m | 6.13 minutes | Isomeric Transition | 97.60% |
| Beta-minus Decay | 2.40% | ||
| 83 | 2.40 hours | Beta-minus Decay | 100.00% |
| 84 | 31.76 minutes | Beta-minus Decay | 100.00% |
| 84m | 6.0 minutes | Beta-minus Decay | 100.00% |
| 85 | 2.90 minutes | Beta-minus Decay | 100.00% |
| 86 | 55.1 seconds | Beta-minus Decay | 100.00% |
| 87 | 55.65 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 2.60% | ||
| 88 | 16.29 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 6.58% | ||
| 89 | 4.40 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 13.80% | ||
| 90 | 1.91 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 25.20% | ||
| 91 | 0.541 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 20.00% | ||
| 92 | 0.343 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 33.10% | ||
| 93 | 102 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 68.00% | ||
| 94 | 70 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 68.00% | ||
| 95 | >= 150 nanoseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 34.00% | ||
| 96 | >= 150 nanoseconds | Beta-minus Decay with delayed Neutron Emission | 27.60% |
| Beta-minus Decay | 100.00% | ||
| 97 | > 300 nanoseconds | Beta-minus Decay | No Data Available |
| 98 | > 634 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.