Question

Explain the difference between an atom and a molecule by comparing the definitions of the two species

Answer 1

Atom is a smallest particle
atom has its independent existence
molecules are smallest particle
it doesn't have its independent existence

Answer 2

ATOM: An atom is smallest particle in an element that has the properties of the element. these are not seen by naked eyes.

MOLECULES: Molecules are formed by the combination of two or more atoms.these can be seen by by magnifying microscopes