Which of the following elements has the greatest first ionisation energy?
A
N\text{N}N
B
O\text{O}O
C
P\text{P}P
D
S\text{S}S
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.