A high-energy proton collides with a stationary beryllium-9 nucleus, initiating a nuclear reaction that produces a lithium-6 nucleus and a single product particle XXX:
11H+49Be→36Li+X {}^{1}_{1}\text{H} + {}^{9}_{4}\text{Be} \rightarrow {}^{6}_{3}\text{Li} + X 11H+49Be→36Li+XWhat is particle XXX?
a deuteron (12H{}^{2}_{1}\text{H}12H)
a triton (13H{}^{3}_{1}\text{H}13H)
an alpha particle (24He{}^{4}_{2}\text{He}24He)
a helium-3 nucleus (23He{}^{3}_{2}\text{He}23He)
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.