Periodic table/electron configuration/ion help

Question

Formula of ionic compound formed: AlCl3

Cation formed?

Anion formed?

Electron configurations for the elements?

Answer 1

Ionic compound AlCl₃ consists of Al³⁺ and Cl^- that come together in a 1:3 ratio to form a neutral salt.

The electronic configurations of the elements are not the configurations in the compound if it is made up of ions: The configurations of the representative elements as ions are the configurations of the nearest noble gases

Al: 1s²2s²2p⁶3s²3p¹ Al³⁺: 1s²2s²2p⁶ or [Ne]

Cl: 1s²2s²2p⁶3s²3p⁵ Cl^-: 1s²2s²2p⁶3s²3p⁶ or [Ar]

Hope that clarifies things.