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This lesson covers the three types of nuclear radiation — alpha (α), beta (β) and gamma (γ) — their properties, how they are emitted, and how they affect the nucleus. This is part of the AQA GCSE Combined Science Trilogy specification (8464, section 6.4.2).
Radioactive decay is the process by which an unstable nucleus gives out radiation to become more stable. It is:
The rate of decay is not affected by external conditions such as temperature, pressure or chemical reactions.
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