(Kimya) (also oxidation state) A number representing the number of electrons lost or gained by an atom of a particular element when chemically combined
(Kimya) 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."
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
(Chemistry) oxidation state, number of electrons needed to restore an atom in a combining condition to its elemental form