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5.2.3a Radioactive decay

A radioactive decay can be represented as shown.

{}^{226}_{88}\text{Ra} \to {}^{222}_{86}\text{Rn}

The equation is incomplete. In this decay, the nucleus changes by:

emitting a $β−\beta^-$ -particle.

emitting a positron ( $β+\beta^+$ -particle).

emitting an $α\alpha$ -particle.

absorbing a neutron.

5.2.3a Radioactive decay Questions

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.

A radioactive decay can be represented as shown.

{}^{226}_{88}\text{Ra} \to {}^{222}_{86}\text{Rn}

The equation is incomplete. In this decay, the nucleus changes by:

emitting a $β−\beta^-$ -particle.

emitting a positron ( $β+\beta^+$ -particle).

emitting an $α\alpha$ -particle.

absorbing a neutron.

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.