What does the process of reduction in a redox reaction involve?

Reduction in a redox reaction specifically refers to the process by which a species gains electrons. This gain of electrons results in a decrease in the oxidation state of the atom or molecule undergoing reduction. In the context of redox reactions, oxidation and reduction occur simultaneously; while one substance undergoes oxidation (loses electrons), another undergoes reduction (gains electrons).

The process of gaining electrons can also lead to an increase in the negative charge of the species being reduced. This is fundamental to understanding redox reactions, as they play a crucial role in various chemical processes, including respiration, photosynthesis, and corrosion. Hence, identifying reduction as the gain of electrons is essential for mastering concepts related to electron transfer and oxidation states in chemistry.