| Answer | Crossword Clue |
|---|---|
| NOBLEGASES | One column in the periodic table |
| GASES | Rightmost column in the periodic table |
| INERT | Like gases in the rightmost column of the periodic table |
| GROUP | Any set of elements in a column on the periodic table |
| ALKALI | Any element in the first column of the periodic table, except hydrogen |
| RAREGAS | Last-column element on the periodic table |
| GASES | Rightmost column of the periodic table, e.g. |
