Question

explain radius ratio rule and give it's significances​

Answer 1

Answer:

Radius ratio rule states: • As the size (ionic radius r) of a cation increases, more anions of a particular size can pack around it. • Thus, knowing the size of the ions, we should be able to predict a priori which type of crystal packing will be observed.

Answer 2

Answer:

the ratio of the ionic radius of the cation to the ionic radius of the anion is known as radius ratio..

significance:-

The radius ratio rule gives relationship between the radius, co-ordination number and the structural arrangement of molecules in an atom.

Radius Ratio = Radius of Cation / Radius of Anion

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