What is a unit cell in a crystal lattice?
A group of atoms that make up a molecule in the crystal lattice
The smallest repeating unit of the crystal lattice
The largest repeating unit of the crystal lattice
The part of the crystal lattice that is most commonly observed
In a crystal lattice, the unit cell is the smallest repeating unit that forms the crystal. It is a three-dimensional structure that contains one or more atoms, ions, or molecules, and it is repeated in space to form the entire crystal lattice. The dimensions and angles of the unit cell determine the symmetry of the crystal and the arrangement of the atoms, ions, or molecules within it.