What occurs during nuclear fission?
A heavy atomic nucleus splits and absorbs energy.
A heavy atomic nucleus splits and emits energy.
Two light atomic nuclei join together and absorb energy.
Two light atomic nuclei join together and emit energy.
170 exam-style questions on CIE IGCSE Physics 5.1.2a Composition of the nucleus and isotopes. Each one has a worked solution and a mark scheme showing where the marks go.