| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| hydrogen atomic mass number | 1.74 | 0.8 | 5413 | 31 | 27 |
| hydrogen | 1.33 | 0.1 | 295 | 9 | 8 |
| atomic | 1.16 | 0.1 | 5659 | 71 | 6 |
| mass | 1.36 | 0.8 | 852 | 59 | 4 |
| number | 1.62 | 0.7 | 124 | 18 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| hydrogen atomic mass number | 1.89 | 0.1 | 2856 | 13 |
