An ionic compound is a type of chemical compound formed through the electrostatic attraction between positively charged ions, known as cations, and negatively charged ions, called anions. These compounds typically consist of a metal and a non-metal, where the metal donates electrons to the non-metal, resulting in the formation of ions. Common examples include sodium chloride (table salt) and magnesium oxide. Ionic compounds usually have high melting and boiling points due to the strong forces of attraction between the ions. They are often soluble in water and can conduct electricity when dissolved or melted, as the ions are free to move.