* Ionic compounds are formed by the electrostatic attraction between positively charged ions (cations) and negatively charged ions (anions).

* Sodium nitrate (NaNO3) is composed of:

* Sodium (Na), which forms a +1 cation (Na+)

* Nitrate (NO3), which forms a -1 anion (NO3-)

The strong electrostatic attraction between the Na+ and NO3- ions holds the compound together in a crystal lattice structure.

Key characteristics of ionic compounds:

* Typically formed between metals and nonmetals.

* High melting and boiling points.

* Conduct electricity when dissolved in water or melted.