IDNLearn.com connects you with a community of knowledgeable individuals ready to help. Get thorough and trustworthy answers to your queries from our extensive network of knowledgeable professionals.
Answer:
magnesium has a higher ionization energy because its radius is smaller. calcium has a higher ionization energy because it outermost sub-energy level is full. they have the same ionization energy because they have the same number of valence electrons.
Explanation:
hope this helps