Types of Unit Cell ------------------------- SIMPLE CUBIC :- in Which the particles are present only at the corners are called simple cubic unit cell . BODY CENTRED :- When in addition to the particles at the corners,there is one particles present at the centre whithin the body of the Unit Cell . FACE CENTERED :- When the particles are present not only at the corners but also at the center of each face of the Unit Cell . SOLID STATE :- Types of Unit Cell