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In calcium, fluoride having the florite ...

In calcium, fluoride having the florite structures. The coordination number for calcium ion `(Ca^(2+))` and fluoride ion `(F^(-))` are

A

4 and 2

B

6 and 6

C

8 and 4

D

4 and 4

Text Solution

Verified by Experts

The correct Answer is:
C
In this structure, `Ca^(2+)` ions are in the FCC
Each `Ca^(2+)` is connected to `4F^(-)` ions above it, i.e., a C.N.=8
and `F^(-)` has a C.N. = 4
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