Please answer the following question: Answer the following question given this paragraph: A unit cell is the smallest portion of a crystal lattice that shows the three-dimensional pattern of the entire crystal. A crystal can be thought of as the same unit cell repeated over and over in three dimensions. The Figure below illustrates the relationship of a unit cell to the entire crystal lattice. Q: What is the smallest portion of a crystal lattice? Choices: - ionic cell - function cell - element cell - unit cell A:
A:
unit cell