Half-lives and the random nature of radioactive decay

Physics (Combined Science) · GCSE · AQA · AQA GCSE Combined Science: Trilogy (8464) — Physics — Foundation · Specification point · 6.4.2.3 · Atomic structure · Atoms and nuclear radiation

Random decay and half-life

Using half-life data

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Learning Objectives

6.4.2.3 Half-lives and the random nature of radioactive decay

Content	Key opportunities for skills development
$Radioactive decay is random. The half-life of a radioactive isotope is the time it takes for the number of nuclei of the isotope in a sample to halve, or the time it takes for the count rate (or activity) from a sample containing the isotope to fall to half its initial level.$
$Students should be able to explain the concept of half-life and how it is related to the random nature of radioactive decay.$	$WS 1.2$
$Students should be able to determine the half-life of a radioactive isotope from given information.$	$MS 4a$

Half-lives and the random nature of radioactive decay (6.4.2.3) | AQA GCSE Combined Science: Trilogy (8464) — Physics — Foundation | KnowledgeSet