In a fusion reaction, what happens to some of the mass of the original nuclei?
Some of the mass is converted into energy of radiation
Some of the mass is converted into extra neutrons emitted
All of the mass stays in the new heavier nucleus produced
Some of the mass is converted into electrons and protons
40 exam-style questions on AQA GCSE Physics 4.4 Nuclear fission and fusion, covering 4.4.1 Nuclear fission and 4.4.2 Nuclear fusion. Each one has a worked solution and a mark scheme showing where the marks go.