Question

(a) Explain the formation of Calcium Chloride with the help of electron dot structure. (At
numbers: Ca = 20; Cl = 17)
(b) Why do ionic compounds not conduct electricity in solid state but conduct electricity in
molten and aqueous state?
Answer.. ​

Answer 1

Lewis dot structure for each atom of the compound to show how many valence electrons are present in each atom. In this question for example, the calcium atom in calcium chloride, CaCl2, has two valence electrons, and the chlorine atoms have seven valence electrons each.

SO, there would be two dots around Ca and seven dots around each Cl atom.

and the reason why ionic compounds can conduct electricity when molten and aqueous and not in a solid state is because when ionic compounds are molten or aqueous the ions are free.

I hope this helps.