| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| periodic table pdf download free | 1.27 | 0.1 | 1615 | 53 |
| periodic table printable pdf free download | 0.75 | 0.3 | 5220 | 59 |
| periodic table of elements pdf free download | 1.18 | 0.5 | 1894 | 100 |
| periodic table worksheets pdf free download | 0.12 | 0.7 | 3810 | 23 |
| periodic table pdf color free download | 1.26 | 0.9 | 5240 | 6 |
