Glossary:Oxidation State

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Oxidation State
The number of electrons to be added, or subtracted, from an atom in a combined state to convert it to the elemental form. For example, Fe2+ requires 2 electrons (e-) to produce elemental Fe.

Source
Adapted from:Soil Science Society of America. Glossary of Soil Science Terms. Available online here, last accessed 28.09.2006.

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