why is the atomic radius of Mg2+ bigger than that of Na+?

Answer Posted / pablo

as in answer # 4 was explained... the question is wrong.

They both have 10 electrons with the configuration of Neon:

2s2 2p6 and empty 3 s


but Na+ has only 1 proton whereas Mg+2 has two--

therefore Mg+2 has a smaller atomic radius then Na+

This can be verified in any decent highschool chemistry book--


By the way, I'm a real chemist! Whoever marked any answer in
this page (except for # 4) as correct is INCREDIBLY WRONG

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