Draw the electron dot diagram of a chlorine atom. Also, draw the electron dot diagram of the formation of chlorine molecule by combining two chlorine atoms? Determine the number of electron pairs shared.

Examine the diagram illustrating the chemical bonding in the molecule of oxygen and nitrogen and answer the question given below.

How many pairs of electrons are shared in these molecules?

Complete the table given below related to covalent bonding.

Evaluate the illustration showing the formation of a chemical bond in hydrogen chloride $\left(\mathrm{HCl}\right)$ molecule and answer the questions given below.

• How many electron pairs are shared?
• Represent chemical bond by using symbols?