A cubic unit cell has atoms at its (i) body centre, and (ii) corner, find the amount of atom each unit cell gets after share with its neighbouring unit cells.
An atom located at the corner of a cubic unit cell is shared by eight adjacent unit cells. Therefore,1/8th portion of the atom is shared by one unit cell. (ii) An atom located at the body centre of a cubic unit cell is not shared by its neighbouring unit cell. Therefore, the atom belongs only to the unit cell in which it is present i.e.,its contribution to the unit cell is 1.
