Yes. Potassium iodide a strong electrolyte (ionic compound).
An electrolyte is any salt or ionizable molecule that, when dissolved in solution, will give that solution the ability to conduct electricity. This is because when a salt dissolves, its dissociated ions can move freely in solution, allowing a charge to flow.
When an ionic compound such as sodium chloride is put into water, the water molecules attract both the cations and anions in the crystal and pull them into the solution. The cations and anions get distributed throughout the solution.
Compounds that readily form ions in solution are known as strong electrolytes. (By this reasoning, all strong acids and strong bases are strong electrolytes.)
By contrast, if a compound dissociates to a small extent, the solution will be a weak conductor of electricity; a compound that only dissociates weakly, therefore, is known as a weak electrolyte.
Electrolytes carry a charge and are essential for life. All higher forms of life need electrolytes to survive. In our bodies, electrolytes include sodium (Na⁺), potassium (K⁺), calcium (Ca²⁺), bicarbonate (HCO₃⁻), magnesium (Mg²⁺), chloride (C1⁻), and hydrogen phosphate (HPO₄²⁻).
You can detect the presence of these ions by using an instrument called a conductivity tester. A conductivity tester tests whether water solutions of various substances conduct electricity. It’s composed of a light bulb with two electrodes attached.
More on electrolytes? See links below:
Dummies.com
[Boundless.com](https://www.boundless.com/chemistry/textbooks/boundless-chemistry-textbook/aqueous-reactions-4/types-of-aqueous-solutions-45/electrolyte-and-nonelectrolyte-solutions-235-1024/
MedicalNewsToday.com