Periodic Table Facts

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Across
  1. 3. used in disinfectant and bleach
  2. 5. copper, silver, gold
  3. 8. is found in trace amounts in the air we breathe
  4. 12. rare earth metals
  5. 13. used in hormone regulation
  6. 14. white fireworks and baseball bats
  7. 15. most used metal
  8. 18. an alloy of iron
  9. 19. used in lights and signs
  10. 21. found in sand rocks and soil - it is an excellent semi-conductor
  11. 23. all radioactive
  12. 25. least reactive
  13. 28. an alloy of copper and other metals like zinc
  14. 30. use in jewelry and photographic paper
  15. 31. The Most Abundant Element in the Universe
  16. 32. an alloy of copper and tin
  17. 33. used to make powerful magnets
Down
  1. 1. Found in Table Salt
  2. 2. Found in Bananas and Avocados
  3. 4. needed for strong bones
  4. 5. used in electric wiring because it is a superior electricity conductor
  5. 6. found in jewelry and most electronic equipment
  6. 7. used in toothpaste
  7. 9. abundant in Earth's crust; used in cans, foil, wrap, pans, building materials, and aircraft
  8. 10. most reactive nonmetal group - 7 valence electrons
  9. 11. used in blimps and balloons
  10. 14. only metal that is liquid at room temperature
  11. 16. very reactive but not as reactive as alkali
  12. 17. completely unreactive, they have a complete outer level of electrons
  13. 20. water softening products and laundry detergent
  14. 22. used to make nitrates for fertilizer and ammonia - makes up 78% of the air we breathe
  15. 24. used in pigments for yellow paint
  16. 26. makes up 20% of the air we breathe
  17. 27. used in nuclear reactors and weapons
  18. 29. found in coal, oil, natural gas and foods