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

Jan 5, 2026 · 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 …

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.

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, …

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 …

Jan 10, 2026 · Molecules form the basis for every physical and chemical process observed in the world. Understanding how these units are constructed and interact is foundational to chemistry and biology. …

Jul 5, 2024 · Molecules are composed of two or more atoms that are chemically bonded together. These atoms can be of the same element, forming a molecule of an element (e.g., O2, N2), or of different …

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 …

Whether a substance made of molecules is solid, liquid, or gas at room temperature is determined by the molecules' molar mass and the strength of electrostatic attraction between molecules.