Knowledge based and then application revision questions for the Physics AQA module on “Atomic Structure” (radioactivity). The answers for the knowledge based questions can be found in the specification, whereas the answers for the application questions are provided. These questions can be used to review the essential knowledge and then to practise the application of this knowledge to examination style questions. The structure of the knowledge questions is such that once completed and checked pupils can cover the answers and practice recalling the answers. The application questions require pupils to think about and use the knowledge within the context of questions within this topic. They are in the style of examination questions but slightly simpler to support pupils with building their confidence. There are questions which cover the whole topic and therefore make it excellent as a revision activity that could be completed in class as a review lesson, as a homework activity, or as a resource available for pupils to revise independently.