Across
- 5. Not chemically bonded
- 6. A group of atoms bonded together
- 7. Chemically bonded
- 9. Neutral subatomic particle
- 10. A type of matter with uniform properties
- 11. The center of the Atome
Down
- 1. The building blocks of life
- 2. Posetively charged subatomic particle
- 3. Single, pure substance
- 4. Negatively charged subatomic particle
- 8. Anything that has mass