GENERAL KNOWLEDGE

Detailed explanation-1: -An anion is an ion with negative charge, meaning it has more electrons than protons. Anions are formed when an atom gains one or more electrons: the gain of the negatively-charged electron(s) results in an overall negative charge.

Detailed explanation-2: -An ion is an atom or group of atoms that has an electric charge. Ions with a positive charge are called cations. Ions with a negative charge are called anions.

Detailed explanation-3: -Positively charged ions are called cations; negatively charged ions, anions.

Detailed explanation-4: -Ions are atoms or molecules which are electrically charged. Cations are positively charged and anions carry a negative charge. Ions form when atoms gain or lose electrons.