Covalent bonds can be single, double or triple covalent bond. How many electrons are shared in each? Give an example of each type.

Question: 

Covalent bonds can be single, double or triple covalent bond. How many electrons are shared in each? Give an example of each type.

Solution:

In single covalent bond, one pair of electrons is shared, eg: Hydrogen molecule. In double covalent bond, two pairs of electrons are shared, eg: Oxygen, and in triple covalent bond, three pairs of electrons are shared. Eg: Nitrogen molecule