Calculate the number of atoms per unit cell present in simple, fcc and bcc unit cells.

The number of atoms per unit cell in bcc lattice is

Unit cells can be divided into two categories, primitive and centred unit cells. (a) Differentiate between unit cell and crystal lattice. (b) Calcualte the number of atoms per unit cell in the following: (i) body centred cubic unit cell (bcc) (ii) face centred cubic unit cell (fcc) .

The number of atoms present per unit cell in simple, fcc and bcc are ………, ……….., and …………, respectively.

How many atoms are present in a simple cubic unit cell?

If the total number of atoms per unit cell is 2, the unit cell is