In terms of electrical charges, what is the term for a positively charged ion?

A positively charged ion is referred to as a cation. This terminology arises from the behavior of ions in an electric field; cations move toward the negative electrode (cathode) during electrolysis. Understanding the term cation is important in various fields, including chemistry and biology, as it plays a critical role in numerous chemical reactions and biological processes.

In contrast, anions are negatively charged ions that move toward the positive pole (anode). Conductive refers to a property of materials to allow the flow of electrical current, which is not specifically related to the charge of ions. Radiant pertains to energy or waves, particularly light, and does not apply to ionic charges. Thus, cation is the precise term for a positively charged ion.