Coordination and radius ratio: A graphical representation

It is often possible to predict or reject structures merely from nackine considerations of ions. electron nairs (I). atoms (.& or &olecules (3). Thus, a recknt surve;show;d that about two-thirds of salt structures were successfullv nredicted from the relative sizes of cations and anions (2)'despite limitations to the validitv of the ionic model such as uncertainties in choosing ionic-radii or neglecting covalency (5). 


Reference: http://pubs.acs.org.sci-hub.cc/doi/abs/10.1021/ed066p509?journalCode=jceda8