__Bravais Space Lattice:__

__Bravais Space Lattice:__

## Bravais showed that there are 14 ways of arranging points in space lattice called the Bravais lattice. In case of a cubic system, there are 3 Bravais lattice.

## Those are 1) Simple Cubic or Primitive Cubic

## 2) Face Centered Cubic (**fcc**)

## 3) Body Centered Cubic (**bcc**)

__1.Simple Cubic:__** **

__1.Simple Cubic:__

** **There** **is one lattice point at each of eight corners of the unit cell. The share of each lattice point to the cubic lattice = 1/8.

## Number of lattice points in unit cell = 1/8 x 8 = 1

## i.e. there is only one lattice point per unit cell.

__2. Face Centred Cubic:__

__2. Face Centred Cubic:__

## There is one lattice point at each of the eight corners and one lattice point at the centers of each of the six faces of the cubic cell.

## Total number of corners lattice points in unit cell 8 x (1/8) = 1

## Total number of face centered lattice points in unit cell = 6 x Â½ = 3.

## Total number of lattice points concerned with unit cell = 1+3=4.

**3. **__Body Centered Cubic:__

__Body Centered Cubic:__

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