The combination of → oxygen with a substance, or the removal of → hydrogen from it.
Verbal noun of → oxidize.
Fr.: nombre d'oxydation
The total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom. In other words, the charge that atom would have if the compound was composed of ions. The oxidation number of an atom is zero in a neutral substance that contains atoms of only one element. Same as → oxidation state.
Fr.: état d'oxydation
Same as → oxidation number.