Question

which formula accurately represents a neutral ionic compound? choose 1 answer: a bes b beca c bei

Explanation:

Step1: Recall ionic - compound formation

Ionic compounds are formed between a metal and a non - metal. The charges of the ions must balance to form a neutral compound. Beryllium (Be) is a metal with a common charge of +2.

Step2: Analyze each option

• Option A: Beryllium (Be) has a +2 charge and sulfur (S) has a - 2 charge. The formula BeS is neutral since (+2)+(-2) = 0.
• Option B: Both Be and Ca are metals. Ionic compounds are formed between a metal and a non - metal, so BeCa is not an ionic compound.
• Option C: Beryllium (Be) has a +2 charge and iodine (I) has a - 1 charge. The correct formula for the compound between Be and I should be BeI₂ to be neutral, not BeI.

Answer:

A. BeS