list of metals and non-metals on the basis of these properties:-
a. Electrical Conductivity and Thermal Conductivity.
b. Melting points and Boiling points
c. Physical state
d. Hardness
Answers
5 physical properties on the basis of which metals can be distinguished from non-metals are:
1. Metals are malleable and ductile. They can be hammered into thin sheets and drawn into thin wires.
E.g Gold & Silver
Non metals are brittle they are neither malleable not ductile. They break into small pieces when hammered.
E.g sulphur & phosphorus are brittle
2. Metals are good conductors of heat and electricity.
E.g silver, copper , aluminium
Non metals are bad conductors of heat and electricity except diamond & graphite.
E.g sulphur & phosphorus
3. Metals are lustrous and can be polished.
E.g Gold & silver, Copper
Non metal or non lustrous and cannot be polished except iodine which is a lustrous non metal.
E.g sulphur & phosphorus
4. Metal are sonorous they make ringing sound when struck.
Non metal are not sonorous.
5. Metals and strong and tough they have high tensile strength.
E.g Iron
Non metal are not strong they have low tensile strength.
E.g graphite
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