In the alpha particle scattering experiment, a small number of alpha particles were deflected through large angles. What did this show?
The atom contains electrons that are held in fixed orbits.
The charge of the atom is spread evenly through its volume.
The charge and the mass of the atom are concentrated at its centre.
The atom is mostly empty space with no charged particles in it.
40 exam-style questions on AQA GCSE Physics 4.1 Atoms and isotopes, covering 4.1.1 The structure of an atom, 4.1.2 Mass number, atomic number and isotopes, and 4.1.3 The development of the model of the atom (common content with chemistry). Each one has a worked solution and a mark scheme showing where the marks go.