Question

What are units of cells?How many are there​

Answer 1

Answer:

A unit cell is the smallest repeating portion of a crystal lattice. Unit cells occur in many different varieties. As one example, the cubic crystal system is composed of three different types of unit cells: (1) simple cubic , (2) face-centered cubic , and (3)body-centered cubic .

Answer 2

Answer:

A unit cell is the smallest repeating portion of a crystal lattice.

Explanation:

There are three different types of unit cells.

(1) simple cubic  (2) face-centered cubic (3)body-centered cubic

hope u understood...