Question

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

Answer 1

Answer:

$I^{-}$

$K^{+}$

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 $I^{-}$ and, as consequence of losing one electron, the K atoms forms the cation $K^{+}$

The formula of potassium iodide is KI

Answer 2

I believe it isK+  + I-=KI