Ionic compounds typically exhibit minimal changes in behavior when subjected to pressure. The strong electrostatic forces between positively and negatively charged ions in these compounds result in rigid, closely packed structures. Under pressure, the interatomic distances may decrease slightly, causing a marginal increase in density. However, unlike covalent compounds, ionic bonds generally do not compress significantly, and the overall behavior remains relatively unaffected. In extreme conditions, high pressure may induce phase transitions, but the basic ionic bonding remains stable, and the compounds tend to maintain their crystalline structures with limited changes in their properties.