What does oxidation state mean?

Definitions for oxidation state

Here are all the possible meanings and translations of the word oxidation state.

Princeton's WordNet

  1. oxidation number, oxidation state(noun)

    the degree of oxidation of an atom or ion or molecule; for simple atoms or ions the oxidation number is equal to the ionic charge

    "the oxidation number of hydrogen is +1 and of oxygen is -2"


  1. oxidation state(Noun)

    the state of an atom having a particular oxidation number


  1. Oxidation state

    The oxidation state is an indicator of the degree of oxidation of an atom in a chemical compound. The formal oxidation state is the hypothetical charge that an atom would have if all bonds to atoms of different elements were 100% ionic. Oxidation states are typically represented by integers, which can be positive, negative, or zero. In some cases, the average oxidation state of an element is a fraction, such as 8/3 for iron in magnetite. The highest known oxidation state is +8 in the tetroxides of ruthenium, xenon, osmium, iridium, and hassium, and some complexes involving plutonium, while the lowest known oxidation state is −4 for some elements in the carbon group. The increase in oxidation state of an atom through a chemical reaction is known as an oxidation; a decrease in oxidation state is known as a reduction. Such reactions involve the formal transfer of electrons, a net gain in electrons being a reduction and a net loss of electrons being an oxidation. For pure elements, the oxidation state is zero. The definition of the oxidation state listed by IUPAC is as follows: [Oxidation state] is defined as the charge an atom might be imagined to have when electrons are counted according to an agreed-upon set of rules:


  1. Chaldean Numerology

    The numerical value of oxidation state in Chaldean Numerology is: 7

  2. Pythagorean Numerology

    The numerical value of oxidation state in Pythagorean Numerology is: 5

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"oxidation state." Definitions.net. STANDS4 LLC, 2017. Web. 29 Mar. 2017. <http://www.definitions.net/definition/oxidation state>.

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