What is a unit cell?

Write is a unit cell and give its parameters?

CsCI crystallizes in cubic unit with CI^- at corners and Cs^+ at the centre of the cube. How many CsCI molecules are these in each unit cell?

What is a solar cell?

In a simple or primitive unit cell, what is the number of atoms per unit cell ?

What is a cell constant ? What are its units? How is it determined experimentally?

In CsCl the number of formula units per unit cell is

Give the parameters of a unit cell.

What is the difference between the number of atoms per unit cell in face-centred cube and body-centred cube ?