Which elements form covalent bonds?

Because covalent bonds are commonly formed between two nonmetals, these compounds exhibit many of the same characteristics of nonmetal elements. Covalent Elements The nonmetal covalent elements found in the periodic table include hydrogen, carbon, nitrogen, phosphorus, oxygen, sulfur and selenium. read more

Covalent bonds are a sharing of electrons; an even sharing of electrons results in a nonpolar covalent bond. Nonpolar bonds mostly exist between atoms of the same element. For example, oxygen contains six electrons in its outer shell. To gain a full outer shell of eight electrons, oxygen atoms form double bonds with other oxygen atoms. read more

Covalent bonds form between atoms of nonmetallic elements. In general, bonds are considered to be covalent if the electronegativity difference between the two atoms bonding is less than 2.0 Pauling units. read more