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  1. Imaging collective quantum fluctuations of the structure of a ...

    Aug 7, 2025 · Because of the Heisenberg uncertainty principle, the structure of a molecule fluctuates about its mean geometry, even in the ground state. Observing this fundamental quantum effect …

  2. Molecule - Wikipedia

    Philosophically, therefore, a molecule is not a fundamental entity (in contrast, for instance, to an elementary particle); rather, the concept of a molecule is the chemist's way of making a useful …

  3. 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 …

  4. 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, …

  5. 4: Molecules and Compounds - Chemistry LibreTexts

    There are many substances that exist as two or more atoms connected together so strongly that they behave as a single particle. These multi-atom combinations are called molecules. Molecules are the …

  6. 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 …

  7. Molecules – Definition, Types, Characteristics, Shapes

    Jul 5, 2024 · 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 a molecule are held together by …