periodic table

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12345678910111213141516171819
Across
  1. 2. (B) – Used in making glass and detergents.
  2. 4. (Si) – Used in making computer chips and glass.
  3. 7. (K) – Used in fertilizers for plant growth.
  4. 8. (Cl) – Used to purify drinking water and in bleaching powder.
  5. 9. (Na) – Used in common salt and street lamps.
  6. 11. (Be) – Used in making strong and light alloys for aircraft.
  7. 12. (Ar) – Used in electric bulbs to protect the filament.
  8. 13. (He) – Used to fill balloons and airships.
  9. 14. (H) – Used as fuel in rockets and in making ammonia for fertilizers.
  10. 15. (Mg) – Used in fireworks and flares.
  11. 18. (F) – Used in toothpaste to protect teeth.
Down
  1. 1. (C) – Used in fuels like coal and in pencils (graphite).
  2. 3. (Ca) – Important for strong bones and teeth; also used in cement and lime.
  3. 5. (Li) – Used in rechargeable batteries (like mobile batteries).
  4. 6. (N) – Used to make fertilizers and to preserve food.
  5. 7. (P) – Used in matchsticks and fertilizers.
  6. 10. (Al) – Used to make utensils, foil, and airplanes.
  7. 16. (S) – Used in making medicines and fertilizers.
  8. 17. (Ne) – Used in bright advertising lights (neon lights).
  9. 19. (O) – Used for breathing and in hospitals for patients.