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What is a molecule?how are molecules of an element different from molecules of a compound ?Explain with the help of 4 examples each .



A molecule is group of atoms (it can either be in an element or a compond ) 
Molecule of an element has identical atoms Eg N2. it has two atoms of nitrogen.

molecule of a compund has diffirent atoms. Eg HCl. It has  an atom of hydrogen and an atom of chlorine
3 5 3
Molecules are the smallest particles of a pure substance that can exist independently and are made up of 2 or more atoms.
molecule are 2 types.
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