Question

define molecules...

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Answer 1

Answer:

You know what an atom is right? The smallest unit of matter is known to be called an atom.

In simple words, a molecule is just a group of such small atoms of an element. So it is just an element's smallest physical unit.

Answer 2

Step-by-step explanation:

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.