| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| periodiek systeem met atoommassa | 1.14 | 0.1 | 8491 | 96 | 32 |
| periodiek | 1.38 | 0.7 | 7195 | 80 | 9 |
| systeem | 0.97 | 0.9 | 1455 | 94 | 7 |
| met | 1.06 | 0.1 | 4849 | 84 | 3 |
| atoommassa | 1.37 | 0.6 | 8872 | 83 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| periodiek systeem met atoommassa | 1.73 | 0.9 | 8067 | 51 |
