Across
- 2. Negatively charged particle
- 3. Outer electrons used for bonding
- 5. Center of an atom
- 6. Carbon form found in pencils
- 8. The element your cereal is based on
- 10. A super strong form of carbon
- 12. Column on the periodic table
Down
- 1. Carbon-based life chemistry
- 4. A pure substance made of one type of atom
- 7. Row on the periodic table
- 9. What atoms form when they connect
- 11. The basic unit of matter