Write the symbols for the ions that form when potassium and iodine react to form the ionic compound potassium iodide.

Explanation:

As iodine has a higher electronegativity value and 7 valence electrons, it takes the valence electron of potassium to complete 8 electrons in its valence shell thus forming the anion and, as consequence of losing one electron, the K atoms forms the cation

The formula of potassium iodide is KI

c. 75.7

i think that is the right