Explanation

 A space lattice (or crystal lattice) is a three-dimensional array of points arranged in a regular pattern, where each point has identical surroundings.

These points represent the positions of atoms, ions, or molecules in a crystal.

Unit cell: The smallest repeating unit of the lattice that, when repeated in space, builds the entire crystal.

Lattice points: Individual points in the lattice where atoms or molecules can be located.

Motif: The group of atoms associated with each lattice point.