An electron moves from an outer orbit to an inner orbit without leaving the atom.
Which describes the energy transfer?
The atom absorbs radiation as the electron gains energy.
The atom emits radiation as the electron gains energy.
The atom absorbs radiation as the electron loses energy.
The atom emits radiation as the electron loses energy.
103 exam-style questions on Edexcel GCSE Physics 6.1 Atomic structure and isotopes, covering 6.1.1 Structure of the atom, 6.1.2 Isotopes: atomic and mass number, 6.1.3 Sub-atomic particles: masses and charges, and 6.1.4 Electron orbits and energy changes. Each one has a worked solution and a mark scheme showing where the marks go.