# How would you name the compound MnF_3?

##### 1 Answer
May 14, 2017

Manganese(III) fluoride

#### Explanation:

Since manganese is a transition metal with multiple common oxidation states, it is conventional to write its oxidation state of it in the compound in Roman numerals enclosed in parentheses. It's oxidation state is $+ 3$ in this compound, because there are three $F$ atoms (ionic charge $- 1$) per one $M n$ atom.

For a binary compound, the cation is written first (with specified oxidation state in parentheses afterward) followed by the anion, which will end in -ide: Manganese(III) fluoride.