| Answer | Crossword Clue |
|---|---|
| INERT | Not reactive |
| INERT | Not reactive, as gases |
| INERT | Not reactive, as some gases |
| RESENTMENT | Reactive indignation. |
| ANTIGEN | Reactive toxin |
| PASSIVATE | Make less reactive |
| FLUORINE | Most reactive element |
| REAGENT | Reactive chemical substance. |
| CESIUM | Highly reactive metal |
| INERT | Non-reactive, like some gases |
