Across
- 3. Electrically charged atom formed by the loss or gain of one or more electrons
- 6. Any of the four substances (earth, water, air, and fire)
- 7. Negative ion
- 8. It’s in the middle of the atom
- 9. Heavy and neutral particle
- 10. Grey mass in the sky, made up of very small floating drops of water
Down
- 1. Positive ion
- 2. An arithmetical value like 4
- 4. Tiny and negatively charged particle
- 5. Heavy and positively charged particle
- 8. Not supporting or helping either side in a conflict