The polyatomic ion \(\mathrm{MnO}_{4}^{2-}\) is listed in your book as permanganate. What would be the name of \(\mathrm{MnO}_{3}^{2-} ?\)

Short Answer

Expert verified
Manganese(IV) Trioxide

Step by step solution

01

Identify the elements

In the \(\mathrm{MnO}_{3}^{2-}\) ion, we have two elements: Manganese (Mn) and Oxygen (O).
02

Determine the charge of Mn

In the \(\mathrm{MnO}_{3}^{2-}\) ion, the total charge is -2. Oxygen has a charge of -2, and since there are 3 oxygen atoms, the total charge of oxygen in the ion is -6. Thus, the charge of Manganese must be +4, so that the overall charge of the ion is -2.
03

Find the name of Oxygen atoms in the ion with appropriate prefix

We have 3 oxygen atoms, which gives us the prefix "tri". The name for Oxygen in the polyatomic ion is Oxide.
04

Name the ion

Combine the name of the metal, the charge of Mn in roman numerals within brackets, and the name of the Oxygen atoms with the appropriate prefix. This gives us the name Manganese(IV) Trioxide for the \(\mathrm{MnO}_{3}^{2-}\) ion.

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