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  1. Molecule | Definition, Examples, Structures, & Facts | Britannica

    Jun 19, 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 …

  2. 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 …

  3. 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 …

  4. 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 …

  5. 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. Atoms in …

  6. 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.

  7. What Is a Molecule? | Office for Science and Society - McGill …

    May 21, 2025 · Molecules are the fundamental components of matter. They are made up of atoms, which in turn are composed of even smaller particles called protons, neutrons, and …

  8. What is Molecule | Types of Molecules, Example - Scienly

    Mar 10, 2025 · In general, a molecule is a group of two or more atoms that are chemically bonded together. It is formed when two or more atoms of the same elements or of different elements …

  9. Molecules - (Information + Facts) - Science4Fun

    When two or more than two atoms are combined together with Chemical Bonding, they form a molecule. The molecule is a smallest possible unit of any substance, which can’t be further …

  10. What is a molecule? Giant and discrete molecules - Nuclear energy

    Sep 20, 2013 · Molecule definition in chemistry: A molecule is an electrically neutral entity composed of two or more atoms. The atoms can be of the same element or not and are joined …