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5.2 Radioactivity

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Question 238

The radioactive nucleus 82210Pb^{210}_{82}\text{Pb}82210​Pb decays to another nucleus by the emission of a β\betaβ-particle. What is the proton number and what is the nucleon number of the nucleus formed by this decay?

A

Proton number: 808080, Nucleon number: 206206206

B

Proton number: 808080, Nucleon number: 210210210

C

Proton number: 838383, Nucleon number: 210210210

D

Proton number: 838383, Nucleon number: 212212212

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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