It's Elemental
Isotopes of the Element Rhodium
Rhodium
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 |
| 103 | 100% | STABLE |
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 89 | 1.5 microseconds | Electron Capture (suspected) | No Data Available |
| Proton Emission (suspected) | No Data Available | ||
| 90 | 12 milliseconds | Electron Capture (suspected) | No Data Available |
| 90m | 1.0 seconds | Electron Capture (suspected) | No Data Available |
| 91 | 1.47 seconds | Electron Capture | No Data Available |
| 91m | 1.46 seconds | Electron Capture | No Data Available |
| 92 | 4.66 seconds | Electron Capture | 100.00% |
| 92m | 0.53 seconds | Electron Capture | 100.00% |
| 93 | 12.2 seconds | Electron Capture | 100.00% |
| 94 | 66 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | 1.80% | ||
| 94m | 25.8 seconds | Electron Capture | 100.00% |
| 95 | 5.02 minutes | Electron Capture | 100.00% |
| 95m | 1.96 minutes | Isomeric Transition | 88.00% |
| Electron Capture | 12.00% | ||
| 96 | 9.90 minutes | Electron Capture | 100.00% |
| 96m | 1.51 minutes | Isomeric Transition | 60.00% |
| Electron Capture | 40.00% | ||
| 97 | 30.7 minutes | Electron Capture | 100.00% |
| 97m | 46.2 minutes | Electron Capture | 94.40% |
| Isomeric Transition | 5.60% | ||
| 98 | 8.72 minutes | Electron Capture | 100.00% |
| 98m | 3.6 minutes | Electron Capture | 11.00% |
| Isomeric Transition | 89.00% | ||
| 99 | 16.1 days | Electron Capture | 100.00% |
| 99m | 4.7 hours | Electron Capture | > 99.84% |
| Isomeric Transition | < 0.16% | ||
| 100 | 20.8 hours | Electron Capture | 100.00% |
| 100m | 4.6 minutes | Isomeric Transition | ~ 98.30% |
| Electron Capture | ~ 1.70% | ||
| 101 | 3.3 years | Electron Capture | 100.00% |
| 101m | 4.34 days | Electron Capture | 92.80% |
| Isomeric Transition | 7.20% | ||
| 102 | 207.3 days | Beta-minus Decay | 22.00% |
| Electron Capture | 78.00% | ||
| 102m | 3.742 years | Electron Capture | 99.77% |
| Isomeric Transition | 0.23% | ||
| 103 | STABLE | - | - |
| 103m | 56.114 minutes | Isomeric Transition | 100.00% |
| 104 | 42.3 seconds | Beta-minus Decay | 99.55% |
| Electron Capture | 0.45% | ||
| 104m | 4.34 minutes | Isomeric Transition | 99.87% |
| Beta-minus Decay | 0.13% | ||
| 105 | 35.36 hours | Beta-minus Decay | 100.00% |
| 105m | 42.9 seconds | Isomeric Transition | 100.00% |
| 106 | 30.07 seconds | Beta-minus Decay | 100.00% |
| 106m | 131 minutes | Beta-minus Decay | 100.00% |
| 107 | 21.7 minutes | Beta-minus Decay | 100.00% |
| 108 | 16.8 seconds | Beta-minus Decay | 100.00% |
| 108m | 6.0 minutes | Beta-minus Decay | 100.00% |
| Isomeric Transition | No Data Available | ||
| 109 | 80 seconds | Beta-minus Decay | 100.00% |
| 110 | 28.5 seconds | Beta-minus Decay | 100.00% |
| 110m | 3.2 seconds | Beta-minus Decay | 100.00% |
| 111 | 11 seconds | Beta-minus Decay | 100.00% |
| 112 | 3.45 seconds | Beta-minus Decay | 100.00% |
| 112m | 6.73 seconds | Beta-minus Decay | 100.00% |
| 113 | 2.80 seconds | Beta-minus Decay | 100.00% |
| 114 | 1.85 seconds | Beta-minus Decay | 100.00% |
| 114m | 1.86 seconds | Beta-minus Decay | 100.00% |
| 115 | 0.99 seconds | Beta-minus Decay | 100.00% |
| 116 | 0.68 seconds | Beta-minus Decay | 100.00% |
| 116m | 0.57 seconds | Beta-minus Decay | 100.00% |
| 117 | 0.44 seconds | Beta-minus Decay | 100.00% |
| 118 | 266 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 3.10% | ||
| 119 | 171 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 6.40% | ||
| 120 | 136 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | < 5.40% | ||
| 121 | 151 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | No Data Available | ||
| 122 | > 300 nanoseconds | Beta-minus Decay | No Data Available |
| Beta-minus Decay with delayed Neutron Emission | No Data Available | ||
| 123 | > 403 nanoseconds | Beta-minus Decay | No Data Available |
| Beta-minus Decay with delayed Neutron Emission | No Data Available | ||
| 124 | > 391 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 | ||
| 125 | > 393 nanoseconds | Beta-minus Decay | No Data Available |
| Beta-minus Decay with delayed Neutron Emission | No Data Available | ||
| 126 | > 395 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 Steve Gagnon.