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    Physics GCSE

    nuclear fission

    What nuclear fission means in Physics GCSE, as defined for AQA, OCR.

    Definitions of nuclear fission

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    Reference: AQA

    The splitting of a large and unstable nucleus into two smaller nuclei that are roughly equal in size.
    AQA · Nuclear fission (study guide)
    A process in which some unstable nuclei may split, usually after first absorbing a neutron.
    OCR · Uses and hazards (study guide)

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