Question:
In CsCl type structure, the coordination number of \(\mathrm{Cs}^{+}\) and \(\mathrm{Cl}^{-}\) respectively are
In CsCl type structure, the coordination number of \(\mathrm{Cs}^{+}\) and \(\mathrm{Cl}^{-}\) respectively are
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CsCl structure is not simple cubic; it is a BCC lattice with two atoms per unit cell.
Updated On: Apr 20, 2026
- 6, 6
- 6, 8
- 8, 8
- 8, 6
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
CsCl has a body-centred cubic (BCC) type structure.
Step 2: Detailed Explanation:
In CsCl, each Cs\(^+\) ion is surrounded by 8 Cl\(^-\) ions (at the corners of a cube), and each Cl\(^-\) ion is surrounded by 8 Cs\(^+\) ions (at the body centre positions of adjacent cubes). So coordination number is 8:8.
Step 3: Final Answer:
8, 8
CsCl has a body-centred cubic (BCC) type structure.
Step 2: Detailed Explanation:
In CsCl, each Cs\(^+\) ion is surrounded by 8 Cl\(^-\) ions (at the corners of a cube), and each Cl\(^-\) ion is surrounded by 8 Cs\(^+\) ions (at the body centre positions of adjacent cubes). So coordination number is 8:8.
Step 3: Final Answer:
8, 8
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