It's Elemental
Isotopes of the Element Strontium
Strontium
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 |
| 84 | 0.56% | STABLE |
| 86 | 9.86% | STABLE |
| 87 | 7.00% | STABLE |
| 88 | 82.58% | STABLE |
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 73 | > 25 milliseconds | Electron Capture with delayed Proton Emission | > 0.00% |
| Electron Capture | 100.00% | ||
| 74 | > 1.2 microseconds | Electron Capture | No Data Available |
| 75 | 88 milliseconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | 5.20% | ||
| 76 | 7.89 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | 3.4×10-5 % | ||
| 77 | 9.0 seconds | Electron Capture | 100.00% |
| Electron Capture with delayed Proton Emission | < 0.25% | ||
| 78 | 160 seconds | Electron Capture | 100.00% |
| 79 | 2.25 minutes | Electron Capture | 100.00% |
| 80 | 106.3 minutes | Electron Capture | 100.00% |
| 81 | 22.3 minutes | Electron Capture | 100.00% |
| 82 | 25.34 days | Electron Capture | 100.00% |
| 83 | 32.41 hours | Electron Capture | 100.00% |
| 83m | 4.95 seconds | Isomeric Transition | 100.00% |
| 84 | STABLE | - | - |
| 85 | 64.850 days | Electron Capture | 100.00% |
| 85m | 67.63 minutes | Isomeric Transition | 86.60% |
| Electron Capture | 13.40% | ||
| 86 | STABLE | - | - |
| 87 | STABLE | - | - |
| 87m | 2.815 hours | Electron Capture | 0.30% |
| Isomeric Transition | 99.70% | ||
| 88 | STABLE | - | - |
| 89 | 50.53 days | Beta-minus Decay | 100.00% |
| 90 | 28.90 years | Beta-minus Decay | 100.00% |
| 91 | 9.63 hours | Beta-minus Decay | 100.00% |
| 92 | 2.66 hours | Beta-minus Decay | 100.00% |
| 93 | 7.43 minutes | Beta-minus Decay | 100.00% |
| 94 | 75.3 seconds | Beta-minus Decay | 100.00% |
| 95 | 23.90 seconds | Beta-minus Decay | 100.00% |
| 96 | 1.07 seconds | Beta-minus Decay | 100.00% |
| 97 | 429 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | <= 0.05% | ||
| 98 | 0.653 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 0.25% | ||
| 99 | 0.269 seconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 0.10% | ||
| 100 | 202 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 0.78% | ||
| 101 | 118 milliseconds | Beta-minus Decay | 100.00% |
| Beta-minus Decay with delayed Neutron Emission | 2.37% | ||
| 102 | 69 milliseconds | Beta-minus Decay with delayed Neutron Emission | 5.50% |
| Beta-minus Decay | 100.00% | ||
| 103 | 68 milliseconds | Beta-minus Decay | No Data Available |
| 104 | 43 milliseconds | Beta-minus Decay | No Data Available |
| 105 | 40 milliseconds | Beta-minus Decay | No Data Available |
| 106 | > 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 | ||
| 107 | > 395 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 |
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