Answer:
Formula of Aluminium oxide is Al2O3.
| Formula | Al2O3 |
| Molar Mass | 101.960 g·mol−1 |
| Density | 3.987g/cm3 |
| Melting Point | 2,072 °C |
| Boiling Point | 2,977 °C |
The aluminium ions and oxygen ions have a charge. Aluminium has a positive charge of +3, while oxygen has a negative charge of -2. The formula for aluminium oxide is obtained by using the criss-cross process. In the chemical process, aluminium usually loses three electrons while oxygen gains two, which is performed primarily to achieve stability.
