A point at one corner of a unit cell is shared among eight unit cells in the lattice. One eighth of a shared lattice point or a shared atom is located in each unit cell.
Click the links on the right to see these concepts illustrated.
An atom within a unit cell is not shared with any other cells. The point in the center of this cell is not shared with any other unit cells.
Parts
of the lattice point at the center of the figure are located in each of
the eight adjacent unit cells outlined by the gray lines.
Copyright ©
2003
by: Journal of Chemical Education Software
by: Journal of Chemical Education Software