Question

what is a molecule and what is the relationship with atoms ?​

Answer 1

Molecules Are Groups of Atoms

While many things in nature do come in their pure elemental form, there are of course many other things that do not. Instead, they are combinations of elements. When elements combine, they form molecules. A molecule is a group of two or more atoms chemically bonded together.

Answer 2

Explanation:

the smallest unit into which a substance can be divided without changing its chemical nature

and it is also form by the atom

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