Key term for Edexcel GCSE Physics, used in Uses and Dangers of Radioactivity.
A type of ionising radiation consisting of two protons and two neutrons (a helium nucleus); it has high ionising power but low penetrating power.
Alpha appears in Edexcel GCSE Physics revision content for Radioactivity, especially Uses and Dangers of Radioactivity and Contamination vs Irradiation.
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