Question

which is a valid ionic compound?
sodide chlorine
sodium chlorine
sodium chloride
sodide chloride

Explanation:

Ionic compounds are named with the cation (metal) first and the anion (non - metal) second. The cation name is the element name (e.g., sodium for \(Na^+\)). The anion name is the element name with the ending changed to -ide (e.g., chloride for \(Cl^-\)).

• “Sodide” is an incorrect cation name (should be sodium).
• “Sodium chlorine” has the wrong anion ending (should be chloride, not chlorine).
• “Sodium chloride” follows the correct naming rules (\(Na^+\) is sodium, \(Cl^-\) is chloride).
• “Sodide chloride” has an incorrect cation name (should be sodium).

Answer:

sodium chloride