Aluminum Oxide Formula Of Ionic Compound

The chemical formula for the ionic compound aluminum oxide is Al2O3. This means that each unit of aluminum oxide contains two aluminum cations (Al3+) and three oxide anions (O2-). The aluminum cations have a positive charge of +3, while the oxide anions have a negative charge of -2.

In order to balance out the charges of the ions in the compound, it takes two aluminum cations to combine with three oxide anions. This results in a neutral compound with no overall charge.

The structure of aluminum oxide is crystalline and has a high melting point. It is commonly used as a refractory material, meaning it can withstand high temperatures without melting or degrading. It is also used as an abrasive and as a component in ceramics, glass, and other materials.