The correct order of ionic radii of the species N3−,O2−,Na+ and F− is:
Among the following species, how many have their ionic size greater than O2−?___
Se2−,F−,N3−,P3−
Consider the following species: N3–,O2–,F–,Na+,Mg2+andAl3+ (a)What is common in them? (b)Arrange them in the order of increasing ionic radii.