Final answer:
In the compound Al2S3, 6 electrons are transferred.
Step-by-step explanation:
The compound Al2S3 is made up of aluminum (Al) and sulfur (S) atoms. In this compound, each aluminum atom loses 3 electrons, resulting in Al3+ ions. Each sulfur atom gains 2 electrons, resulting in S2- ions. To determine the number of electrons transferred in the compound, we need to calculate the difference in the number of electrons lost by the aluminum atoms and gained by the sulfur atoms.
Each Al atom loses 3 electrons, so for 2 Al atoms in the compound, the total number of electrons lost is 2 x 3 = 6. Each S atom gains 2 electrons, so for 3 S atoms in the compound, the total number of electrons gained is 3 x 2 = 6. Therefore, the compound Al2S3 involves the transfer of 6 electrons.