Across
- 2. Symbol is Ca
- 4. Symbol is K
- 5. Symbol is B
- 6. Symbol is Li
- 7. Symbol is S
- 9. Symbol is N
- 10. Symbol is F
- 12. Symbol is Na
- 13. Symbol is C
- 15. Symbol is O
Down
- 1. Symbol is H
- 3. Symbol is Al
- 4. Symbol is P
- 7. Symbol is Si
- 8. Symbol is He
- 9. Symbol is Ne
- 11. Symbol is Be
- 13. Symbol is Cl
- 14. Symbol is Ar
