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Learn what oxidation state is, how to calculate it, and how it relates to redox reactions. Find out the general rules, solved examples, and trends in oxidation states of different elements and compounds. The oxidation state of each atom in a compound is the charge an atom would have if all its bonding electrons were transferred to the atom with the greater attraction for electrons. Atoms in their elemental form, such as O 2 or H 2, are assigned an oxidation state of zero. For example, the reaction of aluminum with oxygen to produce aluminum ... Oxidation States Oxidation state (or oxidation numbers) do not refer to real charges on the atoms, except in the case of actual ionic substances. Oxidation numbers can be determined using the following rules: The oxidation number for an element in its elemental form is 0 (holds true for isolated atoms and elemental substances which bond identical atoms: e.g. Cl 2, etc) The oxidation number of a monoatomic ion is the same as its charge (e.g. oxidation number of Na + = +1, and that of S 2- is ...
