The correct form for an ionic compound containing potassium ions (K⁺) and bromide ions (Br⁻) is potassium bromide.

Here's why:

* Ionic compounds are neutral: The positive and negative charges must balance out.

* Potassium has a +1 charge (K⁺) and bromide has a -1 charge (Br⁻).

* One potassium ion (K⁺) and one bromide ion (Br⁻) combine to form a neutral compound.

Therefore, the formula for potassium bromide is KBr.