It's Elemental
Isotopes of the Element Cobalt
Cobalt
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 |
| 59 | 100% | STABLE |
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 47 | No Data Available | No Data Available | No Data Available |
| 48 | No Data Available | No Data Available | No Data Available |
| 49 | No Data Available | No Data Available | No Data Available |
| 50 | 38.8 milliseconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | 70.50% | ||
| Electron Capture with delayed Double Proton Emission | No Data Available | ||
| 51 | > 200 nanoseconds | Electron Capture | No Data Available |
| 52 | 115 milliseconds | Electron Capture | 100.00% |
| 53 | 240 milliseconds | Electron Capture | 100.00% |
| 53m | 247 milliseconds | Electron Capture | ~ 98.50% |
| Proton Emission | ~ 1.50% | ||
| 54 | 193.28 milliseconds | Electron Capture | 100.00% |
| 54m | 1.48 minutes | Electron Capture | 100.00% |
| 55 | 17.53 hours | Electron Capture | 100.00% |
| 56 | 77.236 days | Electron Capture | 100.00% |
| 57 | 271.74 days | Electron Capture | 100.00% |
| 58 | 70.86 days | Electron Capture | 100.00% |
| 58m | 9.10 hours | Isomeric Transition | 100.00% |
| 59 | STABLE | - | - |
| 60 | 1925.28 days | Beta-minus Decay | 100.00% |
| 60m | 10.467 minutes | Isomeric Transition | 99.76% |
| Beta-minus Decay | 0.24% | ||
| 61 | 1.650 hours | Beta-minus Decay | 100.00% |
| 62 | 1.50 minutes | Beta-minus Decay | 100.00% |
| 62m | 13.91 minutes | Beta-minus Decay | > 99.00% |
| Isomeric Transition | < 1.00% | ||
| 63 | 27.4 seconds | Beta-minus Decay | 100.00% |
| 64 | 0.30 seconds | Beta-minus Decay | 100.00% |
| 65 | 1.16 seconds | Beta-minus Decay | 100.00% |
| 66 | 0.20 seconds | Beta-minus Decay | 100.00% |
| 67 | 0.425 seconds | Beta-minus Decay | 100.00% |
| 68 | 0.199 seconds | Beta-minus Decay | 100.00% |
| 68m | 1.6 seconds | Beta-minus Decay | 100.00% |
| 69 | 229 milliseconds | Beta-minus Decay | 100.00% |
| 70 | 108 milliseconds | Beta-minus Decay | 100.00% |
| 70m | 0.50 seconds | Beta-minus Decay | 100.00% |
| 71 | 80 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | <= 6.00% | ||
| 72 | 59.9 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | >= 6.00% | ||
| 73 | 41 milliseconds | Beta-minus Decay | No Data Available |
| 74 | 25 milliseconds | Beta-minus Decay | No Data Available |
| Beta-minus Decay with delayed Neutron Emission | ~ 18.00% | ||
| 75 | > 150 nanoseconds | Beta-minus Decay | 100.00% |
| 76 | > 634 nanoseconds | Beta-minus Decay | No Data Available |
| Beta-minus Decay with delayed Double Neutron Emission | No Data Available | ||
| Beta-minus Decay with delayed Neutron Emission | No Data Available |
Citation and linking information
For questions about this page, please contact Carol McKisson.