A-level chemistry, ionisation energy - exam question walk through

There are a lot of marks available to students who know the facts. In this walk through we’re going to take a look at an ionisation energy question. It’s only one mark and we are not required to give in-depth explanations. However, this question is a great example of how much you might need to know to get just a single mark. On the plus side, if you put the time and effort into memorising key facts it will really pay off in exams.

Question source;
AQA A-level chemistry
Paper 1 Inorganic and Physical Chemistry
June 2018 Q04.3