(b)What is the nature of charge on (i) a cation, and (ii) an anion?

(c)Name the cation and anion present in MgCl₂. Also, write their symbols.

Solution:

(a) Ions are electrically charged particles. It is created when an atom loses or gains an electron.

The cation Na⁺ is a cation, while the anion Cl^– is an anion.

(b)(i) For cations, positive charge; (ii) For anions, negative charge

(c) Cation: Mg²⁺ (magnesium ion)

Anion: 2Cl^– chloride ions