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5.2.3a Radioactive decay

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Question 31

A radioactive nucleus contains 146 neutrons. The nucleus emits an $α\alpha$ -particle.

How many neutrons are in the nucleus after it has emitted the $α\alpha$ -particle?

A

142

B

144

C

146

D

148

Markscheme

5.2.3a Radioactive decay Questions

IGCSE
Physics
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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