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Revise CIE IGCSE Physics 5.2.4a Half-life with the question bank, lessons, revision guides, and flashcards.
Define the half-life of a particular isotope as the time taken for half the nuclei of that isotope in any sample to decay; recall and use this definition in simple calculations, which might involve information in tables or decay curves (calculations will not include background radiation) • Supplement: Calculate half-life from data or decay curves from which background radiation has not been subtracted
