Final answer:
Ionic bonds are formed by the electrostatic attraction between positively charged cations and negatively charged anions that result from the transfer of electrons.
Step-by-step explanation:
The electrostatic attraction between ions forms an ionic bond. Ionic bonds are created when atoms transfer electrons, resulting in positively charged cations and negatively charged anions. These oppositely charged particles attract each other due to electrostatic forces, forming ionic networks or lattices in compounds such as sodium chloride (table salt). In these crystalline structures, each ion is surrounded by ions of the opposite charge, minimizing repulsive interactions and maximizing attractive forces.