Final answer:
The correct way to represent the ionic compound sodium fluoride is NaF.
Step-by-step explanation:
Sodium fluoride is represented by the chemical formula NaF. The formula indicates that sodium and fluoride ions are combined in a 1:1 ratio to form the compound. Sodium (Na+) is a positively charged cation, while fluoride (F-) is a negatively charged anion. The subscript 1 is not usually written in the formula, so the correct way to represent sodium fluoride is NaF.