When the oxidation number increases, what does that mean about the number of electrons the atom has control over? In other words, if the oxidation number Increases is the atom getting oxidized or reduced When the oxidation number increases, what does that mean about the number of electrons the atom has control over? In other words, if the oxidation number Increases is the atom getting oxidized or reduced When the oxidation number increases, what does that mean about the number of electrons the atom has control over? In other words, if the oxidation number Increases is the atom getting oxidized or reduced Solution oxidation means losing of electrons and getting the +ve charge for example Na (oxidation no. 0) = Na+(oxidation no. +1) + e here Na has 11 electrons but Na+ has control over 10 electrons if u increases the oxidation no. then atom is getting oxidised if u satisfy please rate it thankx. .