Metals and non metals

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Across
  1. 4. happens when non metals are heated
  2. 5. when metals are sanded they are
  3. 7. Metals are very good
  4. 10. the corrosion of iron
  5. 11. mixture of metals
Down
  1. 1. can be hammered into different shapes
  2. 2. undesirable process where metal changes to its oxide
  3. 3. physical properties of non metals are generally ______ of metals
  4. 6. Three quarters of naturally occurring elements
  5. 8. can be pulled or drawn into wire
  6. 9. make ringing sound when struck