For each application of radioactive isotopes, state and explain which type of radioactive emission is suitable and suggest an appropriate half-life for the isotope.
A medical diagnostic tracer injected into a patient's body to monitor organ function
Monitoring the thickness of paper sheets produced in a mill
Carbon-12 (612C^{12}_{6}\text{C}612C) is a stable isotope of carbon. Explain why carbon-14 (614C^{14}_{6}\text{C}614C) is radioactive.
State two different natural sources of background radiation.
134 exam-style questions on CIE IGCSE Physics 5.2.2a Alpha, beta and gamma emission. Each one has a worked solution and a mark scheme showing where the marks go.