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    Chemistry GCSE

    Atoms and molecules

    What Atoms and molecules means in Chemistry GCSE, as defined for AQA.

    Definition of Atoms and molecules

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    Reference: AQA

    Typical atoms are about 0.1 to 0.5 nm across and small molecules are often about 0.5 to 2 nm across.
    AQA · Sizes of particles and their properties (study guide)

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