Group 7(17), the halogens

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Question 6

Medium

Which of the following elements has the highest third ionisation energy?

$Al\text{Al}$

$Mg\text{Mg}$

$Sc\text{Sc}$

$Ca\text{Ca}$

Group 7(17), the halogens Questions

A Level
Chemistry
Group 7(17), the halogens