JEE MAIN - Chemistry (2019 - 10th April Morning Slot - No. 18)
The isoelectronic set of ions is :
F–, Li+, Na+ and Mg2+
Li+, Na+, O2- and F-
N3–, O2-, F- and Na+
N3–, Li+, Mg2+ and O2-
Explanation
Atomic numbers of N, O, F and Na are 7, 8, 9
and 11 respectively.
Therefore, total number of electrons in each of N3-, O2–, F– and Na+ is 10 and hence they are isoelectronic.
Therefore, total number of electrons in each of N3-, O2–, F– and Na+ is 10 and hence they are isoelectronic.
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