Across
- 4. what dose Kr stand for
- 7. what dose S stand for
- 9. what dose Au stand for
- 12. what dose O stand for
- 14. what dose Ar stand for
- 15. what dose He stand for
- 17. what dose Rn stand for
- 18. What dose N stand for
- 20. what dose Ne stand for
Down
- 1. what does H2O stand for
- 2. what dose Cu stand for
- 3. What dose F stand for
- 5. what dose W stand for
- 6. what does H stand for
- 8. what dose B stand for
- 10. what dose Pb stand for
- 11. what does Mg stand for
- 13. What dose Si stand for
- 16. what dose Hg stand for
- 19. what dose Zn stand for
