(e) How is it that ionic compounds in the solid-state do not conduct electricity but they do so when in molten state?
Solution:
(d) Ionic compounds are often hard because their oppositely charged ions are strongly attracted to one another and form a crystal structure.
(e) Ions make up solid ionic compounds, but they don’t conduct electricity. Ions are locked together by a strong electrostatic force, which restricts movement. When it dissolves in water, the crystal structure is disrupted, and the ions begin to move freely, allowing electricity to flow.