Question

13. What is the difference between an atom and molecules
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Answer 1

Atoms are single neutral particles. Molecules are neutral particles made of two or more atoms bonded together. An ion is a positively or negatively charged particle.

Answer 2

Explanation:

Atom may be defined as the smallest particle of an element which does not exist free in nature but takes part directly in chemical combinations.

Molecule may be defined as the smallest particle of an element or compound which exists free in nature but does not participate directly in chemical combinations.