Why are containers made of lead used for the storage and transport of radioactive materials?
Lead is a dense material that absorbs ionizing radiation.
Lead acts as a catalyst that decreases the half-life of the radioactive material.
Lead increases the half-life of the radioactive material to make it safer for longer.
Lead reflects the emitted particles back into the nuclei of the radioactive atoms.
42 exam-style questions on CIE IGCSE Physics 5.2.5 Effects of ionising radiation and safety precautions. Each one has a worked solution and a mark scheme showing where the marks go.