The first ionisation enthalpies of Na, Mg, Al and Si are in the order: – InterviewSolution

1.	The first ionisation enthalpies of Na, Mg, Al and Si are in the order:(i) Na < Mg > Al < Si(ii) Na > Mg > Al > Si(iii) Na < Mg < Al < Si(iv) Na > Mg > Al < Si
Answer» (i) Na < Mg > Al < Si

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