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4.2 Atoms and nuclear radiation

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Question 30
H

Isotopes P and Q have the same half-life. P emits alpha particles and Q emits beta particles. Dust containing each isotope is swallowed. Which is the greater hazard, and why?

[1]
A

Q, because beta particles leave the body without being absorbed by it

B

P, because alpha particles are absorbed by tissue and ionise strongly

C

Q, because beta particles travel further through air than alpha particles

D

P, because alpha particles pass through tissue without being absorbed

Markscheme

4.2 Atoms and nuclear radiation Questions

  1. GCSE
  2. /Physics
  3. /4.2 Atoms and nuclear radiation

40 exam-style questions on AQA GCSE Physics 4.2 Atoms and nuclear radiation, covering 4.2.1 Radioactive decay and nuclear radiation, 4.2.2 Nuclear equations, 4.2.3 Half-lives and the random nature of radioactive decay, and 4.2.4 Radioactive contamination. Each one has a worked solution and a mark scheme showing where the marks go.

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