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.
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
1 answer
1 answer