A) N and O
B) Na and Mg
C) Mg and Al
D) Be and B
Correct Answer: B
Solution :
Na belongs to IA group and Mg belongs to IIA group. On moving form left to right in a period, first ionization energy increases, thus, IE of Mg is greater than the IE of Na. IE order Mg > NaYou need to login to perform this action.
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