The ratio of anion radius to cation radius of a crystal is $10: 9.3$. Then, the coordination number of the…
The ratio of anion radius to cation radius of a crystal is $10: 9.3$. Then, the coordination number of the cation in the crystal is
2
4
6
8
Solution
Given, the radius ratio of anion to cation $=10: 9.3$
$\therefore$ The radius ratio of cation to anion $=9.3: 10$
$=0.93$
When the cation to anion ratio lie between 0.732 to 1.00 , the coordination number is 8 . Thus, the coordination number of the cation in the crystal is 8 .