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5.2.3a Radioactive decay

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Question 60

The nucleus of a radium atom contains 138 neutrons and 88 protons. It decays by emitting an α\alphaα-particle.

How many neutrons and how many protons remain in the nucleus after this decay?

A

134 neutrons and 86 protons

B

134 neutrons and 88 protons

C

136 neutrons and 86 protons

D

136 neutrons and 88 protons

Markscheme

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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