Cation: A cation is an ion with a

A cation is an ion with a positive charge formed when an atom or group of atoms loses one or more electrons . In contrast, an anion is an ion that has a negative charge because it gains electrons. CATION definition: 1. in chemistry, an ion (= type of atom) that has a positive electric charge and therefore moves…. Learn more. Learn what cations and anions are, how they are formed, and how they are named. Find out the periodic table trends and the mnemonics to remember their charges. What is a cation? A cation has more protons than electrons , consequently giving it a net positive charge. For a cation to form, one or more electrons must be lost, typically pulled away by atoms with a stronger affinity for them.