Chapter 15, Problem 15C.3AE

Interpretation Introduction

Interpretation:

The radius of the smallest cation that can have six fold and eightfold co-ordination with the $C{l}^{-}$ ion $\left(radius181pm\right)$ has to be determined.

Concept Introduction:

Range of radius ratio value:

Radius ratio $\left(\frac{r_{+}}{r_{-}}\right)$	Co-ordination no.	Packing system
$<0.155$	$2$	Linear
$0.155-0.225$	$3$	Triangular planar
$0.225-0.414$	$4$	Tetrahedral
$0.414-0.732$	$6$	Octahedral
$0.732-1.00$	$8$	Cubic