METALS AND NON METALS

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Across
  1. 3. rust is an oxide of _____
  2. 5. pencil lead is mainly made from
  3. 6. purple coloured solution used as antiseptic on wounds
  4. 9. elements which form positive ions by losing electrons
  5. 10. a metal which is stored in kerosene.
  6. 12. the property by which metals can be drawn into wire
  7. 14. we say that iron is heavier than aluminium because it has higher ________
  8. 15. process of slow degradation of the metals.
  9. 16. nature of non metal oxide.
  10. 17. a non metal which is liquid in state.
  11. 19. nature of metal oxide.
Down
  1. 1. the property of metals to give out a ringing sound, when struck.
  2. 2. the reaction in which one metals replaces another from its salt solution.
  3. 4. it is a non metal, stored in water.
  4. 7. a highly reactive metal.
  5. 8. hardest non metal
  6. 11. this gas evolved when metal react with acid.
  7. 13. non metal which is used in water purification process.
  8. 18. the property by which metals can be drawn into thin sheets