In a covalent bond, what holds atoms together?

electrons that are shared between atoms

electrons that are transferred from one atom to another

protons that are transferred from one atom to another

a “sea of electrons” around many atoms

Option (a) is the correct answer.

Explanation:

A covalent bond is defined as the bond which is formed due to sharing of electrons.

For example, a carbon atom has 4 valence electrons and a hydrogen atom has 1 valence electron.

So, when a carbon atom chemically combines with a hydrogen atom then sharing of electrons take place between the two and it results in the formation of a methane molecule.

Whereas a bond in which transfer of electrons take place from one atom to another is known as an ionic bond.

For example,

Thus, we can conclude that in a covalent bond electrons that are shared between atoms holds atoms together.