Across
- 3. not evenly mixed
- 10. even but not chemically joined
- 12. matter that doesn't change
- 14. negitive charge
- 15. volume and matter
Down
- 1. chemically bonded
- 2. no charge
- 4. where electrons are in an atom
- 5. gained of lost electrons
- 6. different number of nuetrons
- 7. positively charged
- 8. two atoms as one
- 9. center of an atom
- 11. gold
- 13. matter