Which of the following statements correctly describes the process of nuclear fission?
Two light nuclei join together to form a single heavier nucleus.
A heavy nucleus splits into smaller, lighter nuclei and releases energy.
A radioactive nucleus emits an alpha particle to become more stable.
An atom gains or loses electrons to become a charged ion.
41 exam-style questions on OCR GCSE Physics Radioactive emissions. Each one has a worked solution and a mark scheme showing where the marks go.