periodic table crossword

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Across
  1. 1. Yellow nonmetal with a strong odor
  2. 3. used in balloons
  3. 5. Reddish metal that conducts electricity well
  4. 6. Makes up about 78% of Earth's atmosphere
  5. 7. Essential nutrient, in banana
  6. 9. Soft metal, reacts violently with water
  7. 10. 2nd place medal is made of
  8. 13. Used to disinfect water and in bleach
  9. 15. Important for bones and teeth
  10. 18. Used to galvanize steel and in sunscreen
  11. 21. Metal used in construction and in blood
  12. 22. most abundant element in the universe
  13. 24. Noble gas used in bright advertising signs
Down
  1. 2. Highly reactive, used in toothpaste
  2. 4. Burns with a bright white flame
  3. 8. Found in DNA and used in fertilizers
  4. 9. Common element in sand and computer chips
  5. 11. Noble gas used in light bulbs and welding
  6. 12. Lightweight metal used in aerospace materials
  7. 14. Soft metal used in batteries
  8. 16. Lightweight metal used in cans and foil
  9. 17. Basis of all life on Earth
  10. 19. Essential for respiration in most life forms
  11. 20. Element used in detergents and glass
  12. 23. Highly valued precious metal