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Metals have lustre. Mercury and gallium are an exception.
Non-metals do not have lustre, Iodine and diamond are exceptions.
Metals are solids at room temperature. Mercury is an exception being liquid.
Non-metals are either solid or gaseous. Bromine is an exception being in a liquid state.
Metals generally possess the property of hardness.
Non-metals do not possess the property of hardness.
They are ductile and malleable.
They are non-ductile and malleable.
Metals are good conductors of heat and electricity.
Non-metals are bad conductors of heat and electricity except graphite.
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Metals :
- metals are good conductors of heat
- metals are sonorous metals ( gold )
- metals are generally hard ( solid ) except alkali metals like sodium, potassium
- metals army malleable ( gold and silver )
- all metals except mercury and sisters solid at home temperature
- metal have high melting point but gallium and caesiumhas very low melting point
- metal are lustrous
- most of the metal produce basic oxide when dissolved in water
- Example : gold , silver , iron, lead , mercury
Non - metals :
- non metals are bad conductors of heat except graphite
- non metals are not sonorous
- non metals are either solid or gas except bromine which is a liquid
- non metals are not malleable
- most of the non metals are non lustrous except Iodine
- most non metal produce acidic oxide when dissolved in water
- Example : iodine , carbon, oxygen , nitrogen
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