This theory proceeds from the idea of atomic valence, especially the tetravalence of carbon (which Kekulé announced late in 1857) and the ability of carbon atoms to link to each other (announced in a paper published in May 1858), to the determination of the bonding order of all of the atoms in a molecule.
== Teorija kemijske strukture ==S strukturo snovi so se že pred Kekuléjem ukvarjali Alexander Williamson, Edward Frankland, William Odling, Auguste Laurent, Charles Adolphe Wurtz in drugi.