Answer and Explanation: Atoms are smaller than molecules, and they are also the smallest building blocks of matter. Atoms make up molecules when two or more atoms bond together. ... Some molecules such as proteins can be very large, made up of hundreds of atoms. read more
Other than noble gasess molecules are larger than atoms. atoms are smaller. The atom is the smallest unit of matter, and a molecule is the combination of at least two atoms held by chemical bonds. Thus we can say that an atom is smaller than a molecule; however, atoms come in a wide range of sizes and masses, with hydrogen being the lightest and ununoctium being the heaviest found so far. read more