Final answer:
The compound AlCl₃ is formed by the transfer of three electrons. Aluminum (Al) has a charge of 3+ and chlorine (Cl) has a charge of 1-. To achieve a balanced charge, three chlorine ions accept one electron each from an aluminum ion.
Step-by-step explanation:
The compound AlCl₃ is formed by the transfer of three electrons. Aluminum (Al) has a charge of 3+ and chlorine (Cl) has a charge of 1-. To achieve a balanced charge, three chlorine ions accept one electron each from an aluminum ion, resulting in the formation of three AlCl₃ molecules.