Question

unit exam - ionic compounds and metals
which element will form an ionic bond with potassium, k?
boron, b
sulfur, s
strontium, sr
rubidium, rb

Explanation:

Step1: Recall ionic - bond concept

Ionic bonds form between a metal and a non - metal. Potassium (K) is a metal.

Step2: Identify metal and non - metal among options

Boron (B) is a metalloid. Strontium (Sr) and Rubidium (Rb) are metals. Sulfur (S) is a non - metal.

Step3: Determine the correct option

Since an ionic bond forms between a metal (K) and a non - metal, sulfur (S) will form an ionic bond with potassium.

Answer:

sulfur, S