Lithium reacts with fluorine to form lithium fluoride. The electronic configuration of the lithium atom is 2.1 and the electronic configuration of the fluorine atom is 2.7.
Give the electronic configurations of both of the ions formed.
32 exam-style questions on Edexcel GCSE Chemistry 2.3 Ionic bonding, covering 2.3.1 Ions and the formation of ionic bonds, 2.3.2 Naming and deducing formulae of ionic compounds, and 2.3.3 Giant ionic lattices. Each one has a worked solution and a mark scheme showing where the marks go.