The ratio of the size of the central atom to the size of the coordanating atom which in turn is expressed by the ration of their respective radii of called

Options

A. radius ratio
B. coordinating number
C. rank
D. effective ratio

Answer

1

Explanation

For ionic crystals ,the radius ratio is defined as
`"Radius ratio"=("radius of cation"(r^(+)))/("radius of anion"(r^(-)))`