Coordination numbers of Cs+ and Cl- in CsCl crystal are

Question

Coordination numbers of Cs+ and Cl- in CsCl crystal are (A) 8, 8 (B) 4, 4 (C) 6, 6 (D) 8, 4

Tardigrade Admin · Accepted Answer

CsCl has a bcc structure. Each Cs+ ion is surrounded by 8 Cl- ions and each Cl- ion is surrounded by 8 Cs+ ions. Thus, the structure has 8: 8 coordination number.

Q. Coordination numbers of $C s^{+}$ and $C l^{-}$ in $C s Cl$ crystal are

$8$ , $8$

$4$ , $4$

$6$ , $6$

$8$ , $4$

$C s Cl$ has a $b cc$ structure. Each $C s^{+}$ ion is surrounded by $8$ $C l^{-}$ ions and each $C l^{-}$ ion is surrounded by $8$ $C s^{+}$ ions. Thus, the structure has $8 : 8$ coordination number.

Q. Coordination numbers of Cs+ and Cl− in CsCl crystal are

8, 8

4, 4

6, 6

8, 4