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5.2 Radioactivity

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Question 76
a.

State the nature of a β−\beta^-β−-particle.

[1]
b.

Describe how a uniform magnetic field could be used to distinguish between a beam of α\alphaα-particles and a beam of β−\beta^-β−-particles.

[2]
c.

Describe the path of γ\gammaγ-rays in a uniform electric field.

[1]
d.

State what is meant by the term isotopes. Use the terms proton number and neutron number in your explanation.

[3]
Markscheme

5.2 Radioactivity Questions

  1. IGCSE
  2. /Physics
  3. /5.2 Radioactivity

484 exam-style questions on CIE IGCSE Physics 5.2 Radioactivity, covering 5.2.1 Background radiation and measuring count rate, 5.2.2a Alpha, beta and gamma emission, 5.2.2b Deflection and ionising effects of nuclear radiation, 5.2.3a Radioactive decay, 5.2.3b Effects of decay on the nucleus and decay equations, 5.2.4a Half-life, 5.2.4b Choosing isotopes for applications, and 5.2.5 Effects of ionising radiation and safety precautions. Each one has a worked solution and a mark scheme showing where the marks go.

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