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    Chemistry GCSE

    Trends in reactivity down Group 7

    What Trends in reactivity down Group 7 means in Chemistry GCSE, as defined for AQA.

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    Reference: AQA

    Reactivity decreases down Group 7 because atomic radius increases and shielding increases, so the nucleus attracts an incoming electron less strongly.
    AQA · Group 7 (study guide)

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