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Types of Unit Cell

The co-ordina...

Question

The co-ordination number of the cation in the Face centered cubic(FCC) lattice is:

A

4

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B

8

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C

3

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D

12

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Solution

The correct option is D 12
The coordination number of a central atom is equal to the number of its surrounding atoms.

The face-centered cubic (fcc) has a coordination number of $12$ and contains $4$ atoms per unit cell.

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