The ionic radius(in Å ) of N^(3-), O^(2-) and F^(-)are respectively .

1.	The ionic radius(in Å ) of N^(3-), O^(2-) and F^(-)are respectively .
Answer» 1.71, 1.40 AND1.36 1.71 .1.36 and1.40 1.36, 1.40 and1. 71 1.36 . 1.71and 1.40 Solution :`N^(3-) (7+ 3= 10) ,O^(2-) (8+2 =10)` and `F^(-) (9+ 1=10) ` areisoelectronicions . Amongst isoelectronicions, greaterthe negativechargeon theanion , largeris the ionicradius , Thusionicradiidecreae intheorder`N^(3-) (1.71 Å ) lt` `O^(2-)(1.40 Å) GT F^(-)(1.36 Å) . i.e., `option(a) ISCORRECT .

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