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5.2.3a Radioactive decay

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Question 13

Radioactive carbon-11 decays into boron-11 by emitting a positron (β+\beta^+β+-particle). The equation below represents the decay.

P11C→511B+Q0β {}^{11}_{P}\text{C} \rightarrow {}^{11}_{5}\text{B} + {}^{0}_{Q}\beta P11​C→511​B+Q0​β

What are the values of P P\,P and QQQ?

A

P=6P = 6P=6, Q=1Q = 1Q=1

B

P=6P = 6P=6, Q=−1Q = -1Q=−1

C

P=4P = 4P=4, Q=1Q = 1Q=1

D

P=4P = 4P=4, Q=−1Q = -1Q=−1

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5.2.3a Radioactive decay Questions

  1. IGCSE
  2. /Physics
  3. /5.2.3a Radioactive decay

120 exam-style questions on CIE IGCSE Physics 5.2.3a Radioactive decay. Each one has a worked solution and a mark scheme showing where the marks go.

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