= Cation-anion radius ratio
{wiki=Cation-anion_radius_ratio}
The cation-anion radius ratio is a concept used in chemistry and materials science to understand the stability and coordination of ions in solid ionic compounds. It is defined as the ratio of the radius of a cation (positively charged ion) to the radius of an anion (negatively charged ion). This ratio plays a critical role in predicting the arrangement of ions in a crystal lattice and the type of structure that will form.
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