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GCSE Combined Science · key term
The process in which an unstable atomic nucleus emits radiation and changes to become more stable.
Used by AQA and Edexcel
Specification 6.4.2.1, 6.4.2.3 · Paper 5
The random process in which an unstable atomic nucleus emits radiation as it changes to become more stable.
Revise: Radioactive Decay and Radiation TypesSome nuclei are unstable. They emit radiation as they change to become more stable; this process is called radioactive decay.
Paper 5, Paper 6
The process in which an unstable atomic nucleus emits radiation.
Revise: Radiation properties, background and detectionSome nuclei are unstable. They can become more stable by emitting particles or electromagnetic radiation, carrying energy away. This process is called radioactive decay.
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