What is crystal lattice ? Explain

A regular three-dimensional arrangement of constituent particles in a crystal in which each particle is represented by a point is called crystal lattice.

Crystal Lattices

• Crystalline solids have a regular and periodically repeating pattern of constituent particles.
• The diagrammatical representation of three dimensional arrangements of constituent particles of a crystal in space with each particle depicted as a point is called crystal lattice.
• There are only 14 possible three dimensional lattices and are known Bravais Lattices.
• Each point in a lattice is called lattice point or lattice site.
• Each point in a crystal lattice signifies one constituent particle which can be an atom, a molecule or an ion.
• Lattice points are joined together using straight lines to identify the geometry of the lattice.