Question

what is atom and molecules​

Answer 1

Answer:

Atom is defined as the smallest unit of an element which may or may not exists independently. On the other hand, molecule implies the set of atoms held together by the bond, indicating the smallest unit of a compound. Atoms may or may not exist in the free state, but molecules exist in the free state.

Explanation:

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Answer 2

Answer:

Atoms are defined as “the basic building blocks of matter”. It is the smallest constituent unit of matter that posses the properties of the chemical element

Molecules consist of one or more atoms bound together by covalent (chemical) bonds.