A) N and O
B) Na and Mg
C) Mg and AI
D) Be and B
Correct Answer: B
Solution :
Na belongs to IA group and Mg belongs to II A group. On moving from left to right in a period IE, increases. Thus, IE, of Mg is greater than \[\text{I}{{\text{E}}_{\text{1}}}\]of Na.You need to login to perform this action.
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