Periodic Table Crossword

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Across
  1. 2. an element essential for strong bones and teeth
  2. 4. a noble gas commonly used in light bulbs
  3. 5. the element that forms the basis of life
  4. 8. this element is used in matches and fertilizers
  5. 10. metal used in rechargeable batteries
  6. 11. this element has a famous valley named after it
  7. 12. noble gas used most often in balloons
  8. 14. a yellow element with a strong odor
  9. 16. most commonly used to disinfect water
  10. 17. the gas essential for respiration
Down
  1. 1. the gas that makes up most of the Earth's atmosphere
  2. 3. the noble gas used in bright advertising signs
  3. 4. lightweight metal that is used in cans and foil
  4. 6. metal used in aerospace materials
  5. 7. an alkali metal important for nerve function
  6. 9. the element most commonly found on dining tables
  7. 12. lightest element
  8. 13. metal that burns with a bright white flame
  9. 15. most reactive halogen