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5.2.3a Radioactive decay

During $β−\beta^-$ -decay, one of the neutrons in the nucleus changes.

State the two particles that this neutron decays into.

[1]

Explain how electric charge is conserved during this change.

[2]

Complete the nuclide equation for the $α\alpha$ -decay of radium-226 to form an isotope of radon, symbol $Rn\text{Rn}$ .

^{226}_{88}\text{Ra} \rightarrow \dots

[3]

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.

During $β−\beta^-$ -decay, one of the neutrons in the nucleus changes.

State the two particles that this neutron decays into.

[1]

Explain how electric charge is conserved during this change.

[2]

Complete the nuclide equation for the $α\alpha$ -decay of radium-226 to form an isotope of radon, symbol $Rn\text{Rn}$ .

^{226}_{88}\text{Ra} \rightarrow \dots

[3]

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.