Calcium chloride (CaCl₂) is an ionic compound, so it doesn't have a single electronic configuration like a covalent molecule. Instead, we need to consider the electronic configurations of the individual ions:

* Calcium (Ca): Calcium is in group 2, so it has 2 valence electrons. It loses these electrons to form a +2 cation.

* Neutral Calcium: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²

* Calcium Ion (Ca²⁺): 1s² 2s² 2p⁶ 3s² 3p⁶

* Chlorine (Cl): Chlorine is in group 17, so it has 7 valence electrons. It gains one electron to form a -1 anion.

* Neutral Chlorine: 1s² 2s² 2p⁶ 3s² 3p⁵

* Chloride Ion (Cl⁻): 1s² 2s² 2p⁶ 3s² 3p⁶

Therefore, the electronic configurations for the ions in calcium chloride are:

* Ca²⁺: 1s² 2s² 2p⁶ 3s² 3p⁶

* Cl⁻: 1s² 2s² 2p⁶ 3s² 3p⁶