Definition of oxidation number in English:

oxidation number

Line breaks: oxi|da¦tion num¦ber
(also oxidation state)

noun

Chemistry
A number assigned to an element in chemical combination which represents the number of electrons lost (or gained, if the number is negative), by an atom of that element in the compound.
More example sentences
  • Electrons are assigned to atoms in covalent and ionic compounds and the oxidation number of each atom is determined.
  • A negative oxidation state indicates that an atom can undergo reduction, i.e., gain electrons.
  • The oxidation number for both oxygen atoms in hydrogen peroxide is - 1.

Definition of oxidation number in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day flippant
Pronunciation: ˈflɪp(ə)nt
adjective
not showing a serious or respectful attitude