Learn: Ionic Compounds

Welcome!You've already learned about chemical bonds and ionic bonding. Now, let's take the next step and explore how ionic compounds form and what makes them unique.

What are Ionic Compounds?Ionic compounds are substances formed when positive and negative ions combine through ionic bonding. They are usually made up of a metal and a non-metal. These compounds form a regular lattice structure, giving them unique properties like high melting points.

Properties of Ionic CompoundsIonic compounds have high melting and boiling points because of the strong electrostatic forces between oppositely charged ions. They conduct electricity when molten or dissolved in water, as the ions are free to move and carry charge.

Formation of Ionic CompoundsIonic compounds are formed when a metal atom loses electrons to form positive ions, and a non-metal atom gains electrons to form negative ions. These oppositely charged ions attract each other and form a strong bond.

Lattice StructureIonic compounds form a giant ionic lattice. This is a regular arrangement of ions held together by strong electrostatic forces of attraction. These forces act in all directions, making the structure very stable.

Solubility and ConductivityMany ionic compounds dissolve in water, breaking apart into ions. In water, these ions are free to move, allowing ionic compounds to conduct electricity. However, in solid form, the ions cannot move, so they do not conduct electricity.

Review Time!Great work! You've learned about ionic compounds, including their properties, formation, and structure. Let's test your understanding with a few questions.