What occurs when an atom is oxidized in a chemical reaction?
loss of electrons; decrease in O.N.
loss of electrons; increase in O.N.
gain of electrons; decrease in O.N.
gain of electrons; increase in O.N.
Oxidation is the process in which an atom or a group of atoms taking part in a chemical reaction loses one or more electron.
A chemical reaction in which the oxidation states of atoms are changed is known as a ___ reaction.