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Questions on lesson 3

          Complete the following statements:
          1 – elements are classified into ……………………….. and

          …………………………………….

          2 - ……………………….. is a liquid non metal , while ………………………… is a

          liquid metal.

          3 – the group of ……………………………. has metallic luster , but the
          group

          of …………………………. don't have.

          4 – metals are …………………………. Conductors  of electricity , but

          ……………………….. are bad conductors of electricity except

          ……………………….
          5 – metals are good conductors of ………………………… and

          ………………………………

          6 – metals have ……………………….. melting points, while non metals

          have

          ………………………. Melting point.
          7 - ……………………are malleable and ductile, but ………………………… are

          not.

          8 – the positive poles of dry cells are made up of

          …………………………..

          elelment.
          9 – copper is used in manufacturing of …………………………… and

          …………………………..

          10 – cooking pots are made of ……………………………………


          Choose the correct answer:
          1 – all of the following are metals except ………………………………
          A: copper               b. carbon                           c. iron




          2  iron and copper are considered ………………………………
            –
          A: solid metals  b. liquid non metal                        c. gaseous non metal



          3  ……………………… is the simplest form of matter that can't be
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