It's Elemental
Isotopes of the Element Xenon
Xenon
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 |
| 124 | 0.0952% | >= 1.6×10+14 years |
| 126 | 0.0890% | STABLE |
| 128 | 1.9102% | STABLE |
| 129 | 26.4006% | STABLE |
| 130 | 4.0710% | STABLE |
| 131 | 21.232% | STABLE |
| 132 | 26.9086% | STABLE |
| 134 | 10.4357% | > 5.8×10+22 years |
| 136 | 8.8573% | > 2.4×10+21 years |
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 108 | No Data Available | No Data Available | No Data Available |
| 109 | 13 milliseconds | Alpha Decay | 100.00% |
| 110 | 93 milliseconds | Electron Capture | No Data Available |
| Electron Capture with delayed Proton Emission | No Data Available | ||
| Alpha Decay | 64.00% | ||
| 111 | 0.81 seconds | Electron Capture | 90.00% |
| Alpha Decay | 10.00% | ||
| 112 | 2.7 seconds | Electron Capture | 99.16% |
| Alpha Decay | 0.84% | ||
| 113 | 2.74 seconds | Electron Capture | No Data Available |
| Electron Capture with delayed Proton Emission | 7.00% | ||
| Alpha Decay | ~ 0.01% | ||
| Electron Capture with delayed Alpha Decay | ~ 7.0×10-3 % | ||
| 114 | 10.0 seconds | Electron Capture | 100.00% |
| 115 | 18 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | 0.34% | ||
| Alpha Decay | 3.0×10-4 % | ||
| 116 | 59 seconds | Electron Capture | 100.00% |
| 117 | 61 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | 2.9×10-3 % | ||
| 118 | 3.8 minutes | Electron Capture | 100.00% |
| 119 | 5.8 minutes | Electron Capture | 100.00% |
| 120 | 40 minutes | Electron Capture | 100.00% |
| 121 | 40.1 minutes | Electron Capture | 100.00% |
| 122 | 20.1 hours | Electron Capture | 100.00% |
| 123 | 2.08 hours | Electron Capture | 100.00% |
| 124 | >= 1.6×10+14 years | Double Electron Capture | No Data Available |
| 125 | 16.9 hours | Electron Capture | 100.00% |
| 125m | 57 seconds | Isomeric Transition | 100.00% |
| 126 | STABLE | - | - |
| 127 | 36.346 days | Electron Capture | 100.00% |
| 127m | 69.2 seconds | Isomeric Transition | 100.00% |
| 128 | STABLE | - | - |
| 129 | STABLE | - | - |
| 129m | 8.88 days | Isomeric Transition | 100.00% |
| 130 | STABLE | - | - |
| 131 | STABLE | - | - |
| 131m | 11.84 days | Isomeric Transition | 100.00% |
| 132 | STABLE | - | - |
| 132m | 8.39 milliseconds | Isomeric Transition | 100.00% |
| 133 | 5.2475 days | Beta-minus Decay | 100.00% |
| 133m | 2.198 days | Isomeric Transition | 100.00% |
| 134 | > 5.8×10+22 years | Double Beta-minus Decay | No Data Available |
| 134m | 290 milliseconds | Isomeric Transition | 100.00% |
| 135 | 9.14 hours | Beta-minus Decay | 100.00% |
| 135m | 15.29 minutes | Isomeric Transition | > 99.40% |
| Beta-minus Decay | < 0.60% | ||
| 136 | > 2.4×10+21 years | Double Beta-minus Decay | No Data Available |
| 137 | 3.818 minutes | Beta-minus Decay | 100.00% |
| 138 | 14.08 minutes | Beta-minus Decay | 100.00% |
| 139 | 39.68 seconds | Beta-minus Decay | 100.00% |
| 140 | 13.60 seconds | Beta-minus Decay | 100.00% |
| 141 | 1.73 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 0.04% | ||
| 142 | 1.23 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 0.21% | ||
| 143 | 0.511 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 1.00% | ||
| 144 | 0.388 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 3.00% | ||
| 145 | 188 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 5.00% | ||
| 146 | 146 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 6.90% | ||
| 147 | 0.10 seconds | Beta-minus Decay | No Data Available |
| Beta-minus Decay with delayed Neutron Emission | < 8.00% | ||
| 148 | > 408 nanoseconds | Beta-minus Decay with delayed Neutron Emission | No Data Available |
| Beta-minus Decay | No Data Available |
Citation and linking information
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