In one class, the atoms in a solid are set in an irregular manner, without any short-or long-range order in their atomic arrangement Classification of liquid crystals The liquid crystal state(s) can be attained either by the action of heat on mesogens or by action of solvent on amphiphilic systems. You also know that some crystals have a basis, comprising several atoms within the unit cell, which is replicated by placing copies at all nodes of the lattice. Classification of solids can be based u