Across
- 2. tells the weight of an element
- 5. strongest metal
- 8. Helps bones grow
- 10. 29 on the Periodic Table
- 11. need to breath
- 12. 26 on the Periodic Table
- 15. valuable element used in jewelry
- 16. Lightest element
- 17. depending on how many there are it determines the charge
- 18. section on the top of the table
- 19. 47 on the Periodic table
- 20. determines the row the element
- 21. 12 on the Periodic Table
Down
- 1. plants use this combined with oxygen to breath
- 3. sections on the left side of the table
- 4. tells how many electrons it has
- 6. used to make coins
- 7. Heaviest element
- 9. 18 on the Periodic Table
- 13. used in pools
- 14. 22 on the Periodic Table