Define the terms elements, compounds & mixtures with a view to sh… - Vidyadip

Question

Define the terms elements, compounds $\&$ mixtures with a view to show their basic difference.

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Answer

Element is a pure substance :
$(i)$ It is the basic unit of matter and cannot be broken down into two or more simpler substances by any means.
$(ii)$ It is mainly classified into metals, non$-$metals, metalloids and noble gases.
Compound is a pure substance :
$(i)$ It is formed by combination of two or more elements.
$(ii)$ The elements are combined together in a fixed ratio.
$(iii)$ It can be broken down into its elements by chemical means.
Mixture is an impure substance :
$(i)$ It is formed by combination of two or more elements, compounds or both.
$(ii)$ The substances are mechanically mixed together in any ratio.

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