Across
- 6. The element in Group 7, period 5.
- 9. A property of Group 1.
- 11. Group 1.
- 12. A non-metal with the symbol 'Kr'.
- 13. A property of Group 7.
- 17. The most reactive metal in Group 7.
- 18. The second most reactive element in Group 0.
- 19. The least reactive metal in Group 7.
- 21. The element used in swimming pools.
Down
- 1. The element in Group 1, period 1.
- 2. A non-metal with the symbol of the third letter in the alphabet.
- 3. Group 0.
- 4. A metal with the symbol 'Zn'.
- 5. A metal with the symbol 'Al'.
- 7. A metal with the symbol 'Fe'.
- 8. A property of Group 1.
- 10. The most reactive metal in group 1.
- 14. The things that make up the periodic table.
- 15. Group 7.
- 16. A metal with the symbol 'Au'.
- 20. A non-metal with the symbol 'N'.