An atom of element Q has the electronic structure 2,8,72,8,72,8,7.
Give the group and the period of element Q in the periodic table.
Element Q reacts with sodium. Predict the formula of the compound formed.
Explain why element Q has chemical properties similar to those of fluorine.
40 exam-style questions on AQA GCSE Chemistry 1.2 The periodic table, covering 1.2.1 The periodic table, 1.2.2 Development of the periodic table, 1.2.3 Metals and non-metals, 1.2.4 Group 0, 1.2.5 Group 1, and 1.2.6 Group 7. Each one has a worked solution and a mark scheme showing where the marks go.