Which statement correctly describes the characteristics of radioactive decay?
The rate of decay can be increased by heating the substance to a high temperature.
Radioactive decay is a chemical reaction that can be catalyzed by enzymes.
It is impossible to predict the exact time at which a specific nucleus will decay.
The decay rate of a sample slows down when the sample is enclosed in a thick concrete container.
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.