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5.2 Radioactivity

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Question 319

Isotope Y Y\,Y is radioactive.

Which statement about Y Y\,Y must be correct?

A

Its nucleus is unstable and will undergo spontaneous decay.

B

It is only capable of emitting β\betaβ-particles.

C

Its rate of decay can be slowed down by cooling it.

D

It has a half-life of less than a few days.

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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