Substances can be divided into two types on the basis of some properties. These types are Metals and Non-metals.
Metals are hard, lusturous, sonorous, malleable, ductile, good conductor of heat and electricity. Along with these metals have high melting and boiling point. For example, iron, copper, alulminium, gold, silver, etc.
Metals are solid at room temperature, however mercury is the only metal which is liquid at room temperature.
On the other hand Non-Metals are soft, non-lustrous, non-sonorous, non-malleable, brittle, bad conductor of heat and electricity and have low melting and boiling points. For example, carbon, oxygen, chlorine, bromine, fluorine, etc. . .