The formula unit for the ionic compound, calcium bromide, consists of which of the following?

Question

? 1 Ca+ ion and 1 Br- ion
? 1 Ca2+ ion and 2 Br- ions
? 2 Ca- ions and 1 Br2+ ion
? 2 Ca+ ions and 1 Br2- ion
? 1 Ca2- ion and 2 Br+ ions

Answer 1

The formula unit for calcium bromide is represented as CaBr₂, which indicates that it consists of one calcium ion (Ca²⁺) and two bromide ions (Br⁻). Therefore, the correct option is:

• 1 Ca²⁺ ion and 2 Br⁻ ions.

However, since this exact option is not present in your provided choices but taking into account the specific ions correctly, the closest match based on the given options would be:

• 1 Ca²+ ion and 2 Br- ions.