| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what is the half life of plutonium 238 | 1.47 | 0.4 | 4577 | 72 |
| what is the half life of plutonium-239 | 1.37 | 0.8 | 7817 | 39 |
| plutonium 238 half life | 0.2 | 0.2 | 5331 | 37 |
| half life of plutonium 238 in years | 0.82 | 0.7 | 8929 | 71 |
| half life plutonium 239 | 1.52 | 0.9 | 7529 | 74 |
| what is the half life of plutonium | 1.47 | 0.1 | 4594 | 63 |
| half life of plutonium 239 in years | 0.61 | 0.2 | 6443 | 61 |
| half life of plutonium 240 | 0.9 | 0.4 | 4464 | 5 |
| half life of plutonium 244 | 0.45 | 0.6 | 9919 | 66 |
| plutonium 235 half life | 1.28 | 1 | 8819 | 65 |
| plutonium 241 half life | 0.8 | 0.8 | 1185 | 28 |
| plutonium atomic mass and half life | 1.3 | 0.9 | 7909 | 16 |
| half life of plutonium isotopes | 1.02 | 1 | 5017 | 90 |
| what is the half life of 238u | 0.39 | 0.2 | 1355 | 42 |
| is plutonium 238 stable | 0.24 | 0.8 | 1732 | 5 |
| what is the half-life of uranium-238 | 0.65 | 0.6 | 2521 | 59 |
| how heavy is plutonium 238 | 1.4 | 0.2 | 7967 | 10 |
| how long does plutonium-239 last | 1.42 | 0.9 | 9353 | 1 |
| plutonium-238 | 0.43 | 0.9 | 2718 | 75 |
