Number of atoms in a simple cubic unit call and Body Centred cubic unit cell

The video tutorial explains the structure and atom distribution in cubic unit cells, focusing on simple and body-centered cubic unit cells. It describes how atoms are positioned at the corners and center of these cells and calculates the total number of atoms per unit cell. The simple cubic unit cell has atoms at each corner, contributing 1/8 of an atom per cell, resulting in one atom per unit cell. The body-centered cubic unit cell has additional atoms at the center, leading to a total of two atoms per unit cell.

What is the geometric shape of a simple cubic unit cell?

• A pyramid

• A cube

• A tetrahedron

• A sphere

How many atoms are effectively present in a simple cubic unit cell?

• One atom

• Two atoms

• Four atoms

• Eight atoms

Which of the following is NOT a representation of a simple cubic unit cell?

• Open structure

• Space filling structure

• Hexagonal structure

• Actual simple cubic unit cell structure

In a body-centered cubic unit cell, how many atoms are located at the corners?

• Twelve atoms

• Four atoms

• Six atoms

• Eight atoms

What is the total number of atoms in a body-centered cubic unit cell?

• Four atoms

• Two atoms

• Three atoms

• One atom