Final answer:
K and Al will make an ionic bond because they are a metal and nonmetal respectively.
Step-by-step explanation:
The type of bond that potassium (K) and aluminum (Al) will make is ionic bond.
Ionic bonds are formed between a metal and a nonmetal. In this case, potassium is a metal and aluminum is a nonmetal. Ionic bonds occur when one atom transfers electrons to another, resulting in the formation of charged ions that are attracted to each other.
For example, in the case of K and Al, potassium will donate one electron to aluminum, forming K+ and Al3- ions. These ions will then attract each other due to their opposite charges, creating an ionic bond between K and Al.