Chemistry crossword

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Across
  1. 1. A type of metalloid
  2. 5. the ability to be stretched into wires without breaking
  3. 7. a type of element which has both metals' and non-metals' characteristics but not a mixture
  4. 8. Periodic symbol is (Si)
  5. 9. Synonym of metalloid
  6. 12. Commonly used for cutleries, surgical insturments etc
  7. 15. the ability to produce a ringing sound
  8. 17. the ability to be hammered to shapes and not breaking
Down
  1. 2. the ability to let electrical current to flow through
  2. 3. iron, gold, aluminum
  3. 4. a type of metal
  4. 6. copper and zinc makes?
  5. 10. made up of one type of atom
  6. 11. copper and tin makes?
  7. 13. a mixture of 2 or more metallic elements
  8. 14. Non-metals are .... conductors of electricity
  9. 16. the opposite of metal