| Answer | Crossword Clue |
|---|---|
| ION | Particle that's positive or negative |
| ION | Particle with a positive or negative charge |
| ZERO | Number that's neither positive nor negative |
| NONZERO | Positive or negative |
| ION | Positive or negative .... |
| ION | Positive or negative item |
| NONZERO | Like positive or negative numbers |
| ION | It's either positive or negative |
| ION | It may be negative or positive |
| ANODES | They may be positive or negative |
| ION | It may be positive or negative |
| IONS | They're net positive or net negative |
