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The formula unit for the ionic compound, aluminum sulfide, consists of which of the following?

? 2 Al3+ ions and 3 S2- ions
? 3 Al2+ ions and 2 S3- ions
? 3 Al+ ions and 3 S- ions
? 2 Al3+ ions and 2 S- ions
? 2 Al3- ions and 3 S2+ ions

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
27 days ago

The correct formula unit for aluminum sulfide is made up of 2 aluminum ions (Al³⁺) and 3 sulfide ions (S²⁻) to balance the charges. Therefore, the formula unit is:

\[
\text{Al}_2\text{S}_3
\]

This means the answer is:

- 2 Al³⁺ ions and 3 S²⁻ ions.