WALT IS TOTAL NUMBER OF ATOMS IN ONE UNIT CELL
| Type of unit cell | No. of atoms At corners |
No. of atoms In faces |
No. of atoms At the centre |
Total |
| Primitive cube | 8 x 1 / 8 = 1 | 0 | 0 | 1 |
| Body centred cubic (B.C.C) |
8 x 1 / 8 = 1 | 0 | 1 | 2 |
| Face centred cubic (F.C.C) |
8 x 1 / 8 = 1 | 6 x 1 / 2 = 3 | 0 | 4 |