| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| muonic hydrogen energy levels | 1.58 | 0.6 | 992 | 14 | 29 |
| muonic | 1.13 | 0.6 | 3258 | 38 | 6 |
| hydrogen | 0.75 | 0.7 | 7473 | 100 | 8 |
| energy | 1.27 | 0.7 | 7801 | 100 | 6 |
| levels | 0.38 | 0.8 | 9841 | 92 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| muonic hydrogen energy levels | 1.76 | 0.7 | 4004 | 33 |
