Molecules is a leading international, peer-reviewed, open access journal of chemistry, and is published semimonthly online by MDPI.

The modern concept of molecules can be traced back towards pre-scientific and Greek philosophers such as Leucippus and Democritus who argued that all the universe is composed of atoms and voids.

Sep 12, 2020 · Get the definition of a molecule. See examples of molecules and learn the different between a molecule and a compound.

Nov 15, 2025 · 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 …

Sep 3, 2024 · Here's an explanation of what a molecule is (and is not) with examples of common molecules. A molecule is two or more atoms that form chemical bonds with each other, representing …

Feb 2, 2023 · All objects that we see around us are made of molecules. From living objects such as a plant or an animal, including humans, inanimate objects like a chair, table, wall, door, windows, …

3 days ago · How are molecules formed? What are they made of? Discover these answers and more in this explanation about molecules, their bonds, and their interactions.

While all compounds are molecules, not all molecules are compounds. A molecule is formed when two or more atoms of an element chemically join together. If the types of atoms are different from each …

Jul 20, 2025 · Molecules are formed when two or more atoms are joined together by chemical bonds. For instance, a single oxygen atom (O) can exist, but it often bonds with another oxygen atom to …

Nov 15, 2025 · The chemical bond that binds atoms in molecules together is formed when two atoms share one or more electrons, and achieve a more stable configuration. Molecules can come in …