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प्रश्न
The radius of \[\ce{Na+}\] cation is less than that of \[\ce{Na}\] atom. Give reason.
टीपा लिहा
उत्तर
The radius of \[\ce{Na+}\] ion is smaller than that of Na is due to the following reasons:-
(i) The effective nuclear charge of \[\ce{Na+}\] increases
(ii) The disappearance of 3s orbital from its outermost shell electronic configuration
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