Exam-style question
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Define alpha, beta, and gamma radiation. What is the key difference in their ionisation power?.
Model answer
What a good answer should say
- Alpha radiation consists of helium nuclei and has high ionisation power but low penetration ability.
- Beta radiation consists of electrons and has moderate ionisation power with greater penetration than alpha.
- Gamma radiation consists of electromagnetic waves, has low ionisation power, but high penetration ability.
Explanation
Why this works
This question tests the understanding of the characteristics of different types of radiation. The answer clearly defines each type and highlights the key difference in ionisation power, which is crucial for understanding their interactions with matter.
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