Question
CCEA Unit 1 Paper
A radioactive source emits alpha, beta, and gamma radiation.
(a) State the nature (composition) of each type of radiation. (3 marks) (b) State which type of radiation is stopped by a thin sheet of aluminium but not by paper. (1 mark) (c) Explain why alpha radiation is the most ionising. (2 marks) (d) Explain why gamma radiation is the most penetrating. (2 marks)
8 marks · take your time before peeking.
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Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.