Page 17 - null
P. 17
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
17