Medium Answer Solution:- Properties of ionic crystals- High enthalpies of fusion and vapourisation. High melting and boiling points. Hard and brittle in nature. Conducts electricity but only when dissolved in water. Soluble in water and other polar solvents. Answer verified by Toppr Upvote (0) Was this answer helpful? Get Instant Solutions, 24x7

Organ 151 3 3 5 15 Neither ionic nor covalent bonds have a "melting point". The melting point is a macroscopic property of a compund or element, while bonds are phenomena on the mircoscopic (atomic scale) level. Did you mean melting points of compounds incorporating ionic bonds as opposed to compounds incorporating solely covalent bonds?

Hardness The strength of the bonds between ions in ionic crystals make them quite hard when compared to other types of crystals. Despite their hardness, ionic crystals are brittle. Under pressure, ions within the crystal that have the same charge slide into alignment.