Question

Arrange the folloeing ions in orderctheir increasing ionic radii n3-,o2-,f-,na+,mg2+,al3+

Answer 1

Answer:

Explanation:

All these are isoelectronic species.All of them contain same number of electrons.Size of these species is compared on basis of n/e ratio,where n is no. of protons and e is number of electrons.More is the n/e ratio,less is the size.Al3+ has maximum protons 13,and N3- has least 7.

So, order is Al3+,Mg2+,Na+,F-,O2-,N3-