Across
- 3. Negative charge
- 6. electrons Outermost energy levels
- 9. levels Fixed amount of energy
- 10. Atoms bond together
- 11. Basic unit of matter
- 12. Positive charge
- 14. Horizontal lines
- 16. Groups 1-13
Down
- 1. model Model created by neils bohr
- 2. Elements between metals and non metals
- 4. metals Groups 14-16
- 5. gases Group 18
- 7. Vertical lines
- 8. Neutral charge
- 13. Center of an atom
- 15. structured How the atom is structured