Our environment has various materials with different impressions, textures, sizes, and shapes.
This material is divided into two categories
Metals
Non-metals
Metals - Metals is a material that's opaque, hard, shiny with marvellous electrical and thermal conductivity. Ex:- Copper, Aluminium, Iron, etc.
Non - Metals - Material with a lousy conductivity of heat and electricity, non-lustrous with low density and strength are known as non-metals. Non-metals lack the properties of metal. Ex:- Carbon, phosphorus, etc.
Physical Properties
Metals in their pristine form show shine.
Metals are malleable.
Metal shows flexibility, which means it can be drawn into wires.
Metals are good conductors of heat and electricity, which means heat and electricity can pass through them.
Non-metals do not have a metallic lustre.
Non-metals don't show malleability and ductility.
Non-metals show low conductivity or, say, bad conductivity.
Chemical Properties
Most metals react with O2 and form metal oxide.
Metals react with water and form metal hydroxides or metal oxides and hydrogen.
Non-metals react with O2 to create neutral or acidic oxides.
Non-metals do not show any reaction with water.
Some non-metals are highly reactive in the air, so they are stored in water.
Non-metals do not show reaction with dilute acid.
Learning Videos for 8th Grade Science - Metals and Non-metals