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Note : - Non metals are bad conductors of electricity except carbon

        which is a good conductor of electricity .

        Metals are solids except mercury which is liquid .






        The the economic importance  (life applications):

        Metals
        Iron is used in making: Bridges, car frames, doors and street lights

        (lamp posts).

        Aluminum is used in making:

        Cooking pots and  foil paper.

        Copper is used in making:
        Statues, coins and electric wires.



        Gold is used in manufacturing (making) Jewels.



        Non Metals
        Carbon (graphite) is used in making:

        Positive poles of dry cells (batteries).



        Element                                Kind               Importance


        1- Iron                                Metal              Bridges and car frames


        2- Aluminum                            Metal              Cooking pots

                                                                  foil paper


                                                                  Electric wires
        3- Copper                              Metal              Statues

                                                                  metallic coins

        4- Gold and Silver                     Metal              Jewellery



        5- Carbon (graphite)                   Non-metal  positive poles of dry cells





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