| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| mass number of hydrogen | 1.05 | 0.8 | 7900 | 39 | 23 |
| mass | 1.5 | 1 | 3632 | 53 | 4 |
| number | 0.49 | 0.8 | 356 | 62 | 6 |
| of | 1.97 | 1 | 5171 | 73 | 2 |
| hydrogen | 1 | 0.8 | 2255 | 94 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| mass number of hydrogen | 0.22 | 0.2 | 1046 | 1 |
