An atom of sulfur has the electronic structure 2,8,62,8,62,8,6. Sulfur forms sulfide ions. What is the electronic structure of a sulfide ion?
2,8,82,8,82,8,8
2,8,42,8,42,8,4
2,8,62,8,62,8,6
2,8,22,8,22,8,2
40 exam-style questions on AQA GCSE Chemistry 2.1 Chemical bonds, ionic, covalent and metallic, covering 2.1.1 Chemical bonds, 2.1.2 Ionic bonding, 2.1.3 Ionic compounds, 2.1.4 Covalent bonding, and 2.1.5 Metallic bonding. Each one has a worked solution and a mark scheme showing where the marks go.