| periodic table groups | 1.55 | 0.1 | 734 | 21 | 41 |
| periodic table groups and periods | 1.8 | 0.1 | 4172 | 33 | 34 |
| periodic table groups labeled | 0.46 | 0.1 | 9395 | 29 | 67 |
| periodic table groups names | 0.75 | 0.7 | 1927 | 27 | 69 |
| periodic table groups 1-8 | 1.1 | 0.2 | 1595 | 25 | 2 |
| periodic table groups and families | 0.3 | 0.7 | 5306 | 34 | 17 |
| periodic table groups quiz | 0.37 | 0.8 | 4329 | 26 | 91 |
| periodic table groups and periods labeled | 1.41 | 0.3 | 447 | 41 | 92 |
| periodic table groups explained | 1.67 | 0.7 | 7309 | 31 | 33 |
| periodic table groups valence electrons | 1.08 | 0.5 | 3854 | 39 | 4 |
| periodic table groups nonmetals | 0.46 | 1 | 8348 | 31 | 1 |
| periodic table groups and charges | 0.83 | 0.6 | 4244 | 33 | 64 |
| periodic table groups and columns | 0.7 | 1 | 7838 | 33 | 37 |
| periodic table groups roman numerals | 1.62 | 0.4 | 5122 | 36 | 42 |
| periodic table groups and periods explained | 0.05 | 0.9 | 5531 | 43 | 31 |
| periodic table groups and periods worksheet | 0.68 | 0.1 | 8235 | 43 | 56 |
| how many groups are in the periodic table | 1.93 | 0.5 | 9182 | 41 | 12 |
