Answer
A covalent bond is formed when atoms share one or more electrons.
Explanation
A covalent bond is formed when one or more electron of atoms get shared. For the stability, atoms fill up their outer electron shell. These electron pairs are known as a shared pair. The chemical repulsion and attraction between the atoms are called a covalent bond. There are four types of covalent bonds which are,
Polar bond.
Nonpolar bond.
Double bond.
Triple bond.
