| Nuc- lide | Atomic Mass | NN | Abun % | Spin | Half Life | DM | DT | BR % | Decay Energy (MeV) |
|---|---|---|---|---|---|---|---|---|---|
| Kr69 | 68.965 | 33 | Syn | ||||||
| Kr70 | 69.956 | 34 | Syn | 0+ | |||||
| Kr71 | 70.951 | 35 | Syn | 64ms | ε + P | Se70 | 5.2 | 8.600 | |
| 64ms | ε | Br71 | 10.500 | ||||||
| Kr72 | 71.942 | 36 | Syn | 0+ | 17.2s | ε | Br72 | 5.040 | |
| Kr73 | 72.939 | 37 | Syn | 5/2- | 27s | ε + P | Se72 | 0.68 | 3.720 |
| 27s | ε | Br73 | 6.670 | ||||||
| Kr74 | 73.9333 | 38 | Syn | 0+ | 11.5m | ε | Br74 | 3.140 | |
| Kr75 | 74.931 | 39 | Syn | 5/2+ | 4.3m | ε | Br75 | 4.899 | |
| Kr76 | 75.9259 | 40 | Syn | 0+ | 14.8h | ε | Br76 | 1.311 | |
| Kr77 | 76.9247 | 41 | Syn | 5/2+ | 74.4m | ε | Br77 | 3.063 | |
| Kr78 | 77.9204 | 42 | 0.35 | 0+ | Stable | ||||
| Kr79 | 78.9201 | 43 | Syn | 1/2- | 35.04h | ε | Br79 | 1.626 | |
| meta state 0.130MeV | Syn | 7/2+ | 50s | IT | 0.130 | ||||
| Kr80 | 79.9164 | 44 | 2.25 | 0+ | Stable | ||||
| Kr81 | 80.9166 | 45 | Syn | 7/2+ | 229000y | ε | Br81 | 0.281 | |
| meta state 0.190MeV | Syn | 1/2- | 13.1s | ε | Br81 | 0.0025 | 0.472 | ||
| 13.1s | IT | 0.191 | |||||||
| Kr82 | 81.9135 | 46 | 11.6 | 0+ | Stable | ||||
| Kr83 | 82.9141 | 47 | 11.5 | 9/2+ | Stable | ||||
| meta state 0.042MeV | Syn | 1/2- | 1.83h | IT | 0.042 | ||||
| Kr84 | 83.9115 | 48 | 57. | 0+ | Stable | ||||
| Kr85 | 84.9125 | 49 | Syn | 9/2+ | 10.756y | β- | Rb85 | 0.687 | |
| meta state 0.305MeV | Syn | 1/2- | 4.480h | β- | Rb85 | 78.6 | 0.992 | ||
| 4.480h | IT | 21.4 | 0.305 | ||||||
| Kr86 | 85.9106 | 50 | 17.3 | 0+ | Stable | ||||
| Kr87 | 86.9134 | 51 | Syn | 5/2+ | 76.3m | β- | Rb87 | 3.887 | |
| Kr88 | 87.9144 | 52 | Syn | 0+ | 2.84h | β- | Rb88 | 2.914 | |
| Kr89 | 88.9176 | 53 | Syn | 2+, 5/2+ | 3.15m | β- | Rb89 | 4.990 | |
| Kr90 | 89.9195 | 54 | Syn | 0+ | 32.32s | β- | Rb90 | 4.392 | |
| Kr91 | 90.9234 | 55 | Syn | 5/2+ | 8.57s | β- | Rb91 | 6.440 | |
| Kr92 | 91.9262 | 56 | Syn | 0+ | 1.840s | β- + N | Rb91 | 0.03 | 0.889 |
| 1.840s | β- | Rb92 | 5.987 | ||||||
| Kr93 | 92.931 | 57 | Syn | 1/2+ | 1.286s | β- + N | Rb92 | 1.95 | 2.680 |
| 1.286s | β- | Rb93 | 8.600 | ||||||
| Kr94 | 93.934 | 58 | Syn | 0+ | 0.2s | β- + N | Rb93 | 5.7 | 3.400 |
| 0.2s | β- | Rb94 | 7.300 | ||||||
| Kr95 | 94.94 | 59 | Syn | 1/2 | 0.78s | β- | Rb95 | 9.800 | |
| Kr96 | 95.943 | 60 | Syn | 0+ | |||||
| Kr97 | 96.949 | 61 | Syn | 3/2+ | >150ns | β- | Rb97 | ||
| Nuclide | Potential Parent Nuclides |
|---|---|
| Kr69 | None known |
| Kr70 | None known |
| Kr71 | None known |
| Kr72 | None known |
| Kr73 | None known |
| Kr74 | Rb74 (Syn) Sr75 (Syn) |
| Kr75 | Rb75 (Syn) |
| Kr76 | Rb76 (Syn) Sr77 (Syn) |
| Kr77 | Rb77 (Syn) |
| Kr78 | Br78 (Syn) Rb78 (Syn) Rb78m (Syn) |
| Kr79 | Rb79 (Syn) |
| meta state 0.130MeV | None known |
| Kr80 | Br80 (Syn) Rb80 (Syn) |
| Kr81 | Rb81 (Syn) Rb81m (Syn) |
| meta state 0.190MeV | None known |
| Kr82 | Br82 (Syn) Br82m (Syn) Rb82 (Syn) Rb82m (Syn) Se82 (Natural) |
| Kr83 | Br83 (Syn) Rb83 (Syn) |
| meta state 0.042MeV | None known |
| Kr84 | Br84 (Syn) Br84m (Syn) Rb84 (Syn) |
| Kr85 | Br85 (Syn) |
| meta state 0.305MeV | None known |
| Kr86 | Br86 (Syn) Br87 (Syn) Rb86 (Syn) |
| Kr87 | Br87 (Syn) Br88 (Syn) |
| Kr88 | Br88 (Syn) Br89 (Syn) |
| Kr89 | Br89 (Syn) Br90 (Syn) |
| Kr90 | Br90 (Syn) Br91 (Syn) |
| Kr91 | Br91 (Syn) Br92 (Syn) |
| Kr92 | Br92 (Syn) Br93 (Syn) |
| Kr93 | Br93 (Syn) Br94 (Syn) |
| Kr94 | Br94 (Syn) |
| Kr95 | None known |
| Kr96 | None known |
| Kr97 | None known |
Key:
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Kenneth Barbalace. Periodic Table of Elements - Kr - Krypton. EnvironmentalChemistry.com. 1995 - 2024. Accessed on-line: 4/19/2024
https://EnvironmentalChemistry.com/yogi/periodic/Kr-pg2.html
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