* Metals tend to lose electrons, forming positively charged ions called cations.

* Nonmetals tend to gain electrons, forming negatively charged ions called anions.

The electrostatic attraction between these oppositely charged ions is what creates the ionic bond.

Here's a simple way to remember it:

* Metals form Cations (positive)

* Nonmetals form Anions (negative)

* Cations and Anions attract, forming an ionic bond.

Examples of Ionic Compounds:

* Sodium Chloride (NaCl) - Sodium (metal) loses an electron to Chlorine (nonmetal)

* Magnesium Oxide (MgO) - Magnesium (metal) loses two electrons to Oxygen (nonmetal)

* Potassium Fluoride (KF) - Potassium (metal) loses an electron to Fluorine (nonmetal)

Let me know if you'd like more examples or want to explore specific cases!