What does an atom gain or lose in an oxidation-reduction reaction?

A.

protons

B.

oxygen

C.

neutrons

D.

electrons

Answer: electrons

Explanation:

Oxidation is the loss of electrons during a reaction by a molecules, atom or ion. Oxidation occurs when the oxidation state a molecule, atom or ion is increased. The opposite process is called reduction, which occurs when there is a gain of electrons or the oxidation state of an atom, molecule, or ion decreases