An alpha particle collides with a nitrogen-14 nucleus to produce an oxygen-17 nucleus and particle X\text{X}X.
714N+24He→817O+X {}^{14}_{7}\text{N} + {}^{4}_{2}\text{He} \rightarrow {}^{17}_{8}\text{O} + \text{X} 714N+24He→817O+XWhat is X\text{X}X?
a neutron
a proton
an electron
a positron
50 exam-style questions on AQA A Level Physics Particles, covering Constituents of the atom, Stable and unstable nuclei, Particles, antiparticles and photons, Particle interactions, Classification of particles, Quarks and antiquarks, and Applications of conservation laws. Each one has a worked solution and a mark scheme showing where the marks go.