Chemistry Crossword

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Across
  1. 3. Referred to as the 'King of Elements'
  2. 5. It is used to treat swimming pool water
  3. 7. Discovered by Henry Cavendish
  4. 9. Electronic configuration [He]2s1
  5. 11. Used in pharmaceuticals and saline drips.
  6. 12. Used in the kitchen
  7. 13. Atomic number is twelve
  8. 14. Atomic number of Neon
Down
  1. 1. Humans breathe on this gas
  2. 2. Sodium is derived from the word?
  3. 3. Atomic number is twenty
  4. 4. Used in gears and cogs particularly in the aviation industry.
  5. 6. The name is derived from the Latin 'fluere', meaning to flow
  6. 8. Makes up 78% of the air
  7. 10. Used to fill decorative balloons, weather balloons and airships.