Question

In CsCl type structure, the co-ordination number of \( {Cs}^+ \) and \( {Cl}^- \) respectively are:

• A. 6, 6
• B. 6, 8
• C. 8, 8
• D. 8, 6

Hint:

In a CsCl structure, each ion has a coordination number of 8, reflecting the cubic lattice arrangement of the ions.

Answer 1

The Correct Option is C

Step 1: In a CsCl (cesium chloride) type structure, the cations and anions form a simple cubic lattice, with one ion located at the center of the cube and the other at the corners.
Step 2: Each \( {Cs}^+ \) ion is surrounded by 8 \( {Cl}^- \) ions and vice versa, resulting in a coordination number of 8 for both \( {Cs}^+ \) and \( {Cl}^- \).
Step 3: Therefore, the correct answer is 8 for both ions.