Molecule

Definition

A molecule is the smallest unit of a substance that retains all the physical and chemical properties of that substance. It consists of two or more atoms bonded together.

Related terms

Compound:

A substance formed when two or more elements chemically bond together.

Covalent Bonding: The sharing of electron pairs between atoms to form a molecule.

Molecular Formula:

Represents the number and type of atoms present in one molecule.