What Is The Chemical Formula For Actinium(III) Oxide?

The chemical formula for actinium(III) oxide is Ac2O3.

Actinium(III) oxide is a compound composed of two atoms of the element actinium and three atoms of oxygen. The Roman numeral III in the name indicates that the actinium has an oxidation state of +3, meaning it has lost three electrons and has a charge of 3+. The oxide ion has a charge of 2-, so three oxide ions are needed to balance the charge of the two actinium(III) ions. Thus, the formula is Ac2O3.

Actinium(III) oxide is a white or slightly yellowish powder that is insoluble in water. It is a radioactive compound, as actinium is a radioactive element. Actinium(III) oxide is mainly used for scientific research purposes, such as in nuclear physics experiments and as a radiation source.