IP_(1), IP_(2), IP_(3), IP_(4) and IP_(5) for an element is 7.1, 14.3, – InterviewSolution

1.	IP_(1), IP_(2), IP_(3), IP_(4) and IP_(5) for an element is 7.1, 14.3, 34.5, 46.8 and 162.2 eV respectively then element is :-
Answer» Na SI F CA SOLUTION : VALENCE electron for this element =4

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