| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what is the half life of caesium 137 | 1.04 | 1 | 5791 | 89 |
| what is the half life of cesium 137 | 0.25 | 0.7 | 6572 | 81 |
| caesium 137 half life | 0.82 | 0.1 | 1366 | 8 |
| half life cesium 137 | 1.66 | 1 | 6903 | 72 |
| what is the half life of cesium-137 | 0.04 | 0.1 | 7382 | 63 |
| what is the half life of cs-137 | 1.28 | 0.2 | 2955 | 70 |
| cesium 137 half life calculator | 1.21 | 0.4 | 220 | 48 |
| half life of cesium 131 | 1.9 | 0.5 | 4992 | 60 |
| half life of cesium 134 | 1.22 | 0.2 | 4665 | 77 |
| half life of 137 | 1.42 | 0.3 | 3591 | 100 |
| cesium 135 half life | 1.06 | 0.2 | 8044 | 45 |
| cs 137 half life | 1.33 | 0.5 | 3149 | 55 |
| half life of cesium | 1.32 | 1 | 8351 | 62 |
