Question

what is atom how he is differ from molecule

Answer 1

the building block or smallest particle of the substance which can't be divided further is called an atom
difference to molecules:-
the same type of atom are constituted a molecules
example:- H2 , here the same type of hydrogen atom constituted a molecule, whereas an atom is only single
hope it help you :)

Answer 2

Explanation:

hope it helps u.........