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

Question

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 (A) 2 (B) 4 (C) 6 (D) 8

Tardigrade Admin · Accepted Answer

Given, the radius ratio of anion to cation

= 10 : 9.3

∴

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.

Q. 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

Given, the radius ratio of anion to cation =10:9.3 ∴ 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.

Q. 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

Given, the radius ratio of anion to cation
$= 10 : 9.3$
$∴$ 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.