Metals and non metals are important for us in our daily life. They are used for different purposes in our daily time.
Now, let’s know about metals and non metals one after another.
The elements which conduct heat and electricity are called metals.
Metals are malleable and ductile.
Metals are lustrous, hard, strong and have a sonorous sound.
Iron, zinc, aluminium, copper, mercury, tin, lead, gold, and platinum, etc.
Properties of metals
1. A metal is a good conductor of heat and electricity.
2. Metal is an opaque but good reflector of light when polished.
3. It goes changed into sheets and wire.
4. A metal produces a sonorous sound when struck.
5. Most of the metals are in solid form at room temperature except mercury.
6. Metals have high density.
7. Most of the metals are hard and strong.
8. They have a high melting point and a high boiling point.
9. They have the ability to lose electrons during a chemical reaction.
Uses of metals
1. Metals are uses to make jewellery/ornaments because of their hard and shiny appearance.
2. Metals are uses to make pans and other cooking utensils because they are malleable and good conductors of heat.
3. Metals are uses in electrical bulbs because they are malleable and ductile and also good conductors of electricity.
5. Metals are uses to make buildings, bridges, and factories because they are strong.
6. They are uses in making ringing bells at school and also at home because they produce a sonorous sound.
7. Metals are uses to make alloys.
The elements which can not conduct heat and electricity are called
Metals are non-malleable and non-ductile.
They have a dull sound.
Non-metals are present in all states.
Some examples of non-metals are hydrogen, carbon, nitrogen, oxygen, phosphorus, sulphur and selenium, etc.
Properties of non-metals
1. Metals cannot be beaten into sheets
(non-malleable) and also cannot be drawn into wires (non-ductile).
2. Non-metals cannot conduct heat and electricity.
3. Non-metals can exist in solid, liquid and gaseous states at room temperature.
4. Non-metals are not strong and get easily broken.
5. They are light compared to metals.
6. Non-metals are generally soft. However, carbon (diamond) is an exception.
7. All non-metals (except graphite) possess low melting and low boiling points.
8. Non-metals have the ability to gain electron during a chemical reaction.
Uses of non-metals
1. Non-metals are uses to make different compounds used as raw materials in factories.
2. It is using in the manufacture of pesticides and medicines.
3. They are uses as fertilizers to enhance the growth of plants.
4. Non-metals are uses to make crackers and explosives.
5. They are uses in the water purification process.
6. They are uses to make alloys like steel.
7. Sulphur is a non-metal which is uses to make natural rubber.
8. Plants used sulphur to make protein from pure carbohydrates.
9. Iodine is a non-metal which is use to test fingerprints.
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