Explain how much portion of an atom at(i)corner and (ii) body - centre of a cubic unit is part of its neighbouring unit cell.

Explain how much portion of an atom at(i)corner and (ii) body - centre

1.	Explain how much portion of an atom at(i)corner and (ii) body - centre of a cubic unit is part of its neighbouring unit cell.
Answer» Solution :An atom at the corner is shared by EIGHT adjacent unit CELLS. Hence, portion of the atom at ethe corner that belongs to ONE unit cell`= 1/8`(II) The atom at the body centre of a cubic unit cell is not shared by any other unit cell. Hence , it belongs fully to the unit cell.