
Molecule | Definition, Examples, Structures, & Facts | Britannica
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 …
Molecule - Wikipedia
A molecule may be homonuclear, that is, it consists of atoms of one chemical element, e.g. two atoms in the oxygen molecule (O 2); or it may be heteronuclear, a chemical compound composed of more …
What Is a Molecule? Definition and Examples
Sep 12, 2020 · A molecule is defined as an electrically neutral group of two or more atoms connected by chemical bonds. Here are examples of molecules and a look at the difference between a molecules, …
Definition and Examples of a Molecule - ThoughtCo
Sep 3, 2024 · A molecule is two or more atoms that form chemical bonds with each other, representing the smallest unit of a chemical compound with all the physical and chemical properties of the …
Molecule: Definition, Examples, Facts & Diagram
Feb 2, 2023 · What is a molecule in chemistry. Learn how it is formed. Also, learn about molecular compounds and formulas with examples, facts, and diagrams.
What Are Molecules and How Are They Formed? - Biology Insights
Jul 20, 2025 · A molecule is the smallest unit of a substance that can participate in a chemical reaction and a fundamental component of matter. You can think of molecules as words and the atoms that …
Molecules – Definition, Types, Characteristics, Shapes
Jul 5, 2024 · What Is Molecule? A molecule is a group of two or more atoms bonded together, forming the smallest unit of a chemical compound that retains its chemical properties.
Molecules - Chemistry Encyclopedia - structure, water, examples, …
A molecule is the smallest entity of a pure compound that retains its characteristic chemical properties, and consequently has constant mass and atomic composition.
What is a Molecule? - Chemistry Overview (Video)
Nov 28, 2025 · When atoms share electrons, they form covalent bonds; the resulting collection of bonded atoms is what we call a molecule. Just like an atom is the smallest unit of an element, a …
MOLECULE | English meaning - Cambridge Dictionary
MOLECULE definition: 1. the simplest unit of a chemical substance, usually a group of two or more atoms 2. the simplest…. Learn more.