Question

potassium and sulfur react to form an ionic compound. what is the correct name of the compound formed? potassium sulfide potassium sulfite potassium sulfurite sulfur potasside

Explanation:

When potassium (a metal) reacts with sulfur (a non - metal) to form an ionic compound, the naming convention for ionic compounds is "metal name + non - metal base name + -ide". Potassium is the metal. The base name of sulfur is "sulfur", and when forming the simple ionic compound (not a polyatomic ion - containing compound like sulfite which has the formula \(SO_{3}^{2 -}\)), we use the -ide suffix. So the compound is named based on the metal (potassium) and the non - metal with the -ide ending.

Answer:

potassium sulfide