What type of bond will form between K and F?

The bond between the metal potassium (K) and the nonmetal fluorine (F) is ionic. During the formation of the ionic compound potassium fluoride (KF), the potassium atom loses an electron and becomes a positively charged ion, and the fluorine atom gains the electron and becomes a negatively charged ion. The electrostatic attraction between the two oppositely charged ions is the ionic bond. In general, a metal and a nonmetal will form an ionic bond.