Question

what is the formula of the ionic compound iron (iii) fluoride? fe₃f₃ fef₃ fef fe₃f

Explanation:

Step1: Determine the ions

Iron (III) has a charge of \(Fe^{3 +}\), fluoride ion is \(F^{-}\).

Step2: Balance the charges

To balance the charges, we need 3 \(F^{-}\) ions for 1 \(Fe^{3 +}\) ion.

Answer:

B. \(FeF_{3}\)