Give the systematic name for the following polyatomic ion.
FO^–

• A. hypofluorite
• B. fluorite
• C. fluoride
• D. fluorate
• E. hypofluorate

Answer: (A)

Verified step by step guidance

1. Identify the central element in the polyatomic ion, which is fluorine (F) in this case.
2. Recognize the suffix '-ite' in the name of the ion, which typically indicates a polyatomic ion with one less oxygen atom than the '-ate' form.
3. Note the prefix 'hypo-' which is used when there is one less oxygen than the '-ite' form, indicating the lowest number of oxygen atoms in the series.
4. Combine the prefix 'hypo-' with the root 'fluor' and the suffix '-ite' to form the name 'hypofluorite'.
5. Understand that the systematic name 'hypofluorite' corresponds to the ion FO⁻, which has one oxygen atom less than the 'fluorite' ion.