A) \[Na<Mg>Al<Si\]
B) \[Na>Mg>Al>Si\]
C) \[Na<Mg<Al>Si\]
D) \[Na>Mg>Al<Si\]
Correct Answer: A
Solution :
Ionisation energy increases from left to right in a period. However, exception occur between group - 2 and group -13 elements on account of stability of electronic configuration of valence shell. \[\Rightarrow \]The desired order is : \[Na<Mg>Al<Sl\]You need to login to perform this action.
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