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