Question

.) calculate the number of atoms in
fic unit cell​

Answer 1

Answer:

There are 4 atoms in FCC unit cell

Explanation:

In a FCC lattice there rer 8 atoms at eight corners and 6 at face centers,

Now each corner contributes to eight cells so per unit cell contribution is

1/8×8=1 atom.

Now similarly each face center contributes to two unit cells so contribution per unit cell by six face centers is equal to

1/2×6=3 atoms. Hence total no. of atoms per unit cell of FCC lattice is (1+3)=4 atoms.