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)
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.