| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| oxygen outer shell electrons | 1.13 | 0.9 | 8284 | 10 | 28 |
| oxygen | 1.32 | 0.7 | 976 | 2 | 6 |
| outer | 1.98 | 0.6 | 1891 | 16 | 5 |
| shell | 0.68 | 0.4 | 5559 | 30 | 5 |
| electrons | 0.01 | 0.1 | 2210 | 34 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| oxygen outer shell electrons | 1.7 | 0.3 | 1028 | 31 |
| how many electrons in oxygen outer shell | 1.95 | 0.7 | 6217 | 67 |
| number of electrons in outer shell of oxygen | 0.54 | 0.6 | 4017 | 19 |
| how many electrons are in oxygen outer shell | 1.47 | 0.8 | 5918 | 52 |
| oxygen number of electrons fill outer shell | 1.93 | 1 | 1151 | 41 |
| electrons in outer shell of oxygen | 1.27 | 0.7 | 7083 | 26 |
| how many outer electrons does oxygen have | 0.45 | 0.4 | 9212 | 42 |
| how many electrons in the outer shell | 0.21 | 0.8 | 9434 | 6 |
| how many electrons in oxygen valence shell | 0.52 | 0.9 | 6340 | 77 |
| oxygen electrons per shell | 0.89 | 0.4 | 5792 | 85 |
| how many electrons in oxygen | 0.35 | 0.7 | 7016 | 74 |
| number of electron shells oxygen | 0.14 | 0.2 | 1748 | 76 |
| number of electrons in oxygen valence shell | 1.07 | 0.7 | 8148 | 83 |
| electron shell of oxygen | 1.74 | 0.6 | 1061 | 23 |
| does oxygen have 2 electron shells | 0.78 | 0.5 | 2672 | 11 |
