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Subject - General Chemistry
Named for A. Bravais, these lattices describe the ways in which a space can be constructed from a three-dimensional repeating arrangement of points. The Bravais lattices permit a systematic description of the arrangement of atoms, ions, or molecules within a crystal. This is done by considering the unit cell of the crystal. It exist 14 different Bravais lattices, which can be classified into seven .
A Bravais lattice consists of only one type of particle; for example the crystal lattice of a salt is made of a lattice of cations and an equivalent lattice of anions that is shifted by an appropriate translation factor.
The Bravais lattices are classified as either body-centered lattice), in the middle of each face of the unit cell (face-centered lattice), or at the centers of the two bases of the unit cell (base-centered lattice).or centered lattices. The centered lattices are further differentiated by the location of their additional lattice points. These may be either at the body center of the unit cell (