what is the oxidation number of an atom?
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oxidation number, also called oxidation state, the total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom. Related Topics: oxidation-reduction reaction.
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The Oxidation number of an atom is the ability of an electron to gain or lose.
- The oxidation number of an atom is also known as the oxidation state.
- When any atom bonds with other atoms, it gains/loses or shares a number of electrons.
- The number of electrons that are gained/lost or shared is the oxidation state of that atom.
- For example, the Oxidation number of oxygen is 2-, 1- is for chlorine, 3- is for nitrogen, 2+ is for magnesium, 3+ is for aluminium and 1+ is for sodium.
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