four differences in the general properties of metals and non-metals.
Answers
Step-by-step explanation:
(a) Difference between metals and non-metals:
Metals
(i) Metals are malleable i.e. they can be beaten into thin sheets with a hammer.
(ii) Metals are ductile i.e. they can be drawn into thin wires.
(iii) Metals are good conductors of heat and electricity.
Non-metals
(i) Non-metals are non-malleable i.e. they cannot be beaten into thin sheets with a hammer.
(ii) Non-metals are non-ductile i.e. they cannot be drawn into thin wires.
(iii) Non-metals are bad conductors of heat and electricity.
(b) Difference between metals and non-metals:
Metals
(i) Metals form basic oxides.
(ii) Metals displace hydrogen from water
(iii) Metals displace hydrogen from dilute acids.
Non-metals
(i) Non-metals form acidic or neutral oxides.
(ii) Non-metals do not react with water.
(iii) Non-metals do not react with dilute acids.
Metals are malleable. They can be beaten into thin sheets using a hammer.
Non-metals are brittle. They break when beaten by a hammer.
Metals are hard and strong. (except sodium and potassium)
Non-metals are not as hard or strong as metals (except diamond)
Metals are shiny.
Non-metals are not as shiny as metals (except diamond)
Metals are good conductors of heat and electricity.
Non-metals are poor conductors of heat or electricity. (except graphite)
Metals are sonorous. They vibrate when struck and produce a ringing sound.
Non-metals are not sonorous.