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Molecule



Molecule, smallest particle of a chemical compound that retains all the chemical properties of that compound. Molecules are made up of atoms joined to one another by chemical bonds. The composition of a molecule is represented by its molecular formula. Molecules range in size from two atoms to macromolecules (chiefly proteins and polymers), which may be composed of 10,000 or more atoms.



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21st Century Webster's Family Encyclopedia21st Century Webster's Family Encyclopedia - Mississippian to Mud hen