Question

Why are fluorine and oxygen compounds more aptly called oxygen fluorides?

Answer 1

1. Fluorine is more electronegative than oxygen.
2. Therefore, in compounds like OF₂, oxygen is considered the central atom bonded to fluorine atoms.
3. Due to this electronegativity difference, the compound is named oxygen fluoride instead of fluorine oxide.
4. Conversely, chlorine, bromine, and iodine are less electronegative than oxygen, so their oxides are named as halogen oxides.
5. Thus, oxygen-fluorine compounds are named oxygen fluorides because fluorine’s higher electronegativity places oxygen as the central element in naming.