Question

what is atom and molecules ​

Answer 1

atom :

atom is the smallest particle of an element which shows all the properties of the element.

eg. H is an atom , Cl is an atom

molecules:

molecules are formed by the combination of 2 or more atoms under suitable condition...

eg. H2, N2 ETC...

Answer 2

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An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across.

Molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.

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