Question

Why is ${\mathrm{O}}_2$ a covalent bond?

Answer 1

Covalent bonding:

1. A chemical link involving the sharing of electron pairs between atoms is known as a covalent bond.
2. Shared pairs or bonding pairs are the stable balance of attractive and repulsive forces between atoms when they share electrons, while covalent bonding is the stable balance of attractive and repulsive forces between atoms when they share electrons.

Oxygen molecule:

1. A carbon-oxygen link is a polar covalent connection between carbon and oxygen.
2. With six valence electrons, oxygen can either share two carbon bonding electrons, leaving the four non-bonding electrons in two lone pairs: $\mathrm{O}:$ or share two electron pairs to create the functional group carbonyl.
3. For starters, molecular oxygen (${\mathrm{O}}_2$) is nonpolar because the electrons are uniformly divided between the two oxygen atoms.
4. These materials split electrons in the same way as carbon and hydrogen atoms do, resulting in a non-polar covalent molecule.

Hence, ${\mathrm{O}}_2$ is a covalent bond.