A focused three-component revision and exam practice pack for SP6e, covering the complete Edexcel Separate Science Physics specification for the nature, charge, mass, ionising ability and penetrating ability of alpha, beta and gamma radiation (P6.10, P6.11, P6.15, P6.16).

Topic Mastery Sheet covers the five properties of each radiation type in a comparison table (nature, charge, mass, ionising ability, penetration, and what stops it); an explanation of why ionisation and penetration trade off against each other (alpha is large/slow → loses energy quickly in short range = strong ioniser/weak penetrator; gamma has no charge/mass → interacts weakly = weak ioniser/strong penetrator); the nature of the positron as the antiparticle of the electron; the random nature of radioactive decay; and a worked method for testing whether a source emits alpha particles using distance - the exact two-mark question that appears in the Higher paper.

Student Exam Practice Sheet includes a six-cell radiation properties table completion and the two-mark alpha detection question. Question format matches the Edexcel test style.

Teacher Answer Key provides a complete mark scheme for the table (6 specific cells required), and specifies that the alpha detection answer must include both increasing the distance to at least 7 cm and the observation that a significant fall in count rate confirms alpha emission.

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