Strontium, Sr, is a metal in group 2 of the periodic table. Bromine, Br, is a non-metal in group 7. Strontium reacts with bromine to form the ionic compound strontium bromide.
Describe the changes to the outer-shell electrons of the strontium and bromine atoms in this reaction, and give the charges on the ions that are produced.
119 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.