A nucleus changes from mass number 87 and atomic number 35 to mass number 86 and atomic number 36. One beta-minus particle and one other particle are emitted. What is the other particle?
one neutron
one gamma photon
one positron
one alpha particle
120 exam-style questions on Edexcel GCSE Physics 6.3 Nuclear equations and decay, covering 6.3.1 Beta-minus and beta-plus decay, 6.3.2 Effects of decay on the nucleus, and 6.3.3 Balancing nuclear equations. Each one has a worked solution and a mark scheme showing where the marks go.