Page 2 - Lesson Note 2
P. 2
(i) Body-centred unit cells:
When constituent particles are present at corners and one
at centre of the body, it is called body-centred unit cell.
(ii) Face-centred unit cell:
When constituent particles are present at corners and at
centre of each face, it is called face-centred unit cell.
(iii) End-centred unit cell:
When constituent particles are present at corners and at
centre of any one pair of opposite faces, it is called centred
unit cell.
simple cubic unit cell
body centered unit cell
