Which statement is not correct about the trends in the properties of the Group 2 elements, or their compounds, from magnesium to barium?
The first ionisation energy of the elements decreases.
The solubility of the metal sulfates in water increases.
The atomic radius of the elements increases.
The reactivity of the elements with cold water increases.
37 exam-style questions on AQA A Level Chemistry Group 7(17), the halogens, covering Trends in properties and Uses of chlorine and chlorate(I). Each one has a worked solution and a mark scheme showing where the marks go.