Across
- 3. these are the rows on the periodic table
- 6. Fr
- 7. W
- 8. B
- 10. group 18 is also known as these
- 12. Au
- 14. Br
- 17. Ac
- 18. these are the columns of the periodic table
- 21. In
- 22. Re
- 24. Rn
- 25. Be
- 28. Y
- 30. Co
- 31. U
- 32. Po
- 33. Ti
Down
- 1. Pb
- 2. F
- 4. Es
- 5. Ar
- 9. P
- 11. Al
- 13. As
- 15. Cs
- 16. Kr
- 19. Ag
- 20. N
- 23. He
- 26. Hg
- 27. At
- 29. Tl
