Electromagnetic radiation passes through a sample of gas. An atom absorbs some of the radiation.
Which describes the change to an electron in the atom?
It loses energy and moves to an allowed orbit closer to the nucleus.
It gains energy and moves to an allowed orbit farther from the nucleus.
It loses energy and moves to an allowed orbit farther from the nucleus.
It gains energy and moves to an allowed orbit closer to the nucleus.
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.