There are millions of known organic compounds, which is far more than the number of inorganic compounds. Carbon has four valence electrons and therefore makes four separate covalent bonds in compounds...There are millions of known organic compounds, which is far more than the number of inorganic compounds. Carbon has four valence electrons and therefore makes four separate covalent bonds in compounds. Carbon has the ability to bond to itself repeatedly, making long chains of carbon atoms as well as ringed structures. Carbon readily makes covalent bonds with other elements, primarily hydrogen, oxygen, nitrogen, halogens, and several other nonmetals.