Question

what is the co ordinationation number of fcc​

Answer 1

Answer:

If you consider the corner atom of a cube in fcc structure the the face centered atoms are the nearest atoms so one corner atom is sorrounded by 4 faces in x plane,4 faces y plane and 4 faces in z plane . so total numberof 4*3=12 face centered atoms . so co-ordination number is 12.

Answer 2

Answer:

$\huge\mathfrak\red {Hey\:Mate}$

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➡your answer is 12 .

➡The face-centered cubic (fcc) has a coordination number of 12 and contains 4 atoms per unit cell. The body-centered cubic (bcc) has a coordination number of 8 and contains 2 atoms per unit cell. The simple cubic has a coordination number of 6 and contains 1 atom per unit cell.

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