Question

Why are called anion to anion and cation to cation ???

Answer 1

Faraday also introduced the words anion for a negatively charged ion, and cation for a positively charged one. In Faraday's nomenclature, cations were named because they were attracted to the cathode in a galvanic device and anions were named due to their attraction to the anode.

Answer 2

When an electric current is passed through a aquas or molten state of any substance, then it breaks down into two or more than two simpler substances in which one has positive charge which is called anion ,and one has negative charge which is called cation.☺☺☺