Which element has the highest third ionisation energy?
A
Al\text{Al}Al
B
Ca\text{Ca}Ca
C
Mg\text{Mg}Mg
D
Sr\text{Sr}Sr
Markscheme
Group 7(17), the halogens Questions
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.