Periodic Table Crossword

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Across
  1. 5. It's earlier name was magnium
  2. 7. It comes from Scandinavia
  3. 11. It's the 4th element on the Periodic Table
  4. 12. It only reacts to fluorine gas
  5. 14. It's essential in plants
  6. 15. It is 38% more denser than air
  7. 17. Name comes from the greek word for moon
  8. 19. It's probably in almost everything
  9. 20. It's the 2nd most lightest element
Down
  1. 1. It was discovered twice
  2. 2. First element to be isolated by electrolysis
  3. 3. It has 26 neutrons
  4. 4. 3rd most abundant element in the ocean
  5. 6. It was known since ancient times
  6. 8. Children need it to grow
  7. 9. It's the 2nd most abundant of all metals
  8. 10. It's used in stainless steel and magnets
  9. 11. It smells bad to many humans
  10. 13. It's found in bones
  11. 16. It expands when it freezes
  12. 18. 2nd most abundant element in Earth's core