Some unstable nuclei decay by emitting beta minus (β−\beta^{-}β−) particles.
State what a beta minus particle is.
During beta minus decay, a neutron in the nucleus changes into another particle.
Give the name of this particle.
Give the relative charge of a beta minus particle.
Give the name of the particle emitted from the nucleus in beta plus (β+\beta^{+}β+) decay.
State the effect of gamma emission on the mass number of a nucleus.
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.