Define covalent bond?

A covalent bond is a type of chemical bond that involves the sharing of electron pairs between atoms. This sharing of electrons allows each atom to achieve a full outer electron shell, making the atoms more stable. Covalent bonds are typically formed between nonmetal atoms.

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. Covalent bonds are the result of the overlap of atomic orbitals, and they are typically stronger than ionic bonds. The strength of a covalent bond depends on the number of electrons that are shared between the atoms, and on the electronegativity of the atoms involved.