Definitions for "Ionic radius"
The radius of one of the ions in an ionic compound.
Compare with atomic radius. The radii of anions and cations in crystalline ionic compounds, as determined by consistently partitioning the center-to-center distance of ions in those compounds.
An approximate equal distance between adjacent ions.
Keywords:  sphere, rigid, model, considered, size
This gives the size of an ion when considered as a rigid sphere in the Ionic Model.