kationeina
Kationeina is a term encountered in some languages and historical discussions to refer to cations, the positively charged ions in chemical systems. In contemporary English-language chemistry, the standard term for these species is cation, with the plural form cations. The alternative form kationeina may appear in translations or older texts, but it is not widely used in modern practice.
Etymology and usage context vary by language. The root concept derives from the Greek word for going
Properties and roles. Cationeina, or cations, carry positive charge and interact with anions, solvents, and solid
Applications and contexts. Cations are central to electrochemistry, ion exchange processes, and geochemistry, where exchangeable cations