Metals and Non metals

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Across
  1. 1. Alloy that is harder than Zn or Cu; Used for making utensils (Cu 80%, Zn 20%)
  2. 5. Ag
  3. 6. Metals oxides are _________
  4. 7. Can be Stretched
  5. 11. This non metallic gas is needed for living
  6. 13. This state of hydrogen is useful as rocket fuel
  7. 14. The property of metals produce a ringing sound when struck
  8. 16. This alloy is used as a support structure in buildings
  9. 17. acidzinc + this acid reacts to produce zinc chloride + hydrogen
  10. 19. It's a mixture of two or more metals
  11. 20. The hardest known material
  12. 22. For joining metals, soldering wires, electronic components
  13. 23. Its chemical symbol is N
Down
  1. 2. Nationality of the inventor of the periodic table
  2. 3. Families of elements in the same horizontal row
  3. 4. Can be beaten into shape
  4. 8. Metals are good ____ of heat and electricity
  5. 9. Shiny
  6. 10. Colour of chlorine gas
  7. 12. Alloy used to make statues (Cu 90%, Sn 10%)
  8. 15. Table organizing all elements
  9. 17. Its chemical symbol is H
  10. 18. Its chemical symbol is C.
  11. 21. Families of elements in the same vertical column
  12. 24. Unreactive gases in group VIII of the periodic table