●a Chapter vil solid State UNIT CELL The LATTICE NP, BASIS/ MOTIF smallest component of the crystal, which when stacked together with pure translational repetition reproduces the CRYSTAL STRUCTURE whole crystal Primitive Cell: simplest cell, contain one lattice point Not necessary have the crystal symmetry 20218/21 Chemistry Departme nt of Fudan UniversityPhysical ChemistryI Chapter VII Solid State 2021/8/21 Chemistry Department of Fudan University 10 Primitive Cell: simplest cell, contain one lattice point Not necessary have the crystal symmetry UNIT CELL = The smallest component of the crystal,which when stacked together with pure translational repetition reproduces the whole crystal