How many number of atoms are present in f c c unit cell?

Question

How many number of atoms are present in f c c unit cell? (A) 4 (B) 3 (C) 2 (D) 1

Tardigrade Admin · Accepted Answer

In face-centred cubic structure 8 atoms at corners and six at the centre of each face are present, the contribution will be =8 × (1/8)+6 × (1/2)=1+3=4 atoms per unit cell.

Q. How many number of atoms are present in $f cc$ unit cell?

4

3

2

1

In face-centred cubic structure $8$ atoms at corners and six at the centre of each face are present, the contribution

will be $= 8 \times \frac{1}{8} + 6 \times \frac{1}{2} = 1 + 3 = 4$ atoms per unit cell.

Q. How many number of atoms are present in fcc unit cell?

4

3

2

1

In face-centred cubic structure 8 atoms at corners and six at the centre of each face are present, the contribution will be =8×81​+6×21​=1+3=4 atoms per unit cell.

Q. How many number of atoms are present in $f cc$ unit cell?

In face-centred cubic structure $8$ atoms at corners and six at the centre of each face are present, the contribution

will be $= 8 \times \frac{1}{8} + 6 \times \frac{1}{2} = 1 + 3 = 4$ atoms per unit cell.