The Periodic Table

12345678910111213141516171819
Across
  1. 1. sixth element
  2. 3. found in foil and cans
  3. 8. used to clean pools
  4. 9. forth element
  5. 11. found in bananas
  6. 13. often used in fireworks
  7. 15. has the symbol 'B'
  8. 17. first element
  9. 18. seventh element
  10. 19. often found in toothpaste
Down
  1. 1. necessary for strong bones and teeth
  2. 2. has a the symbol 'Li'
  3. 4. eighteenth element
  4. 5. has the symbol 'Na'
  5. 6. used in light fixtures
  6. 7. often used to inflate party balloons
  7. 10. fourteenth element
  8. 12. has the symbol 'S'
  9. 14. fifteenth element
  10. 16. important for respiration