Question

Write The Four Properties Of Ionic Compounds.

Answer 1

Ionic compounds:

• Ionic compounds are those compounds that are formed by the complete electron transfer between two atoms to form a strong ionic bond.
• Ionic compounds are composed of oppositely charged ions held together by strong electrostatic force of attraction.
• Example - $\mathrm{NaCl}$(Table salt)

Properties of ionic compounds:

• High melting and boiling points: Ionic compounds have high melting and boiling point because they are composed of the strong intermolecular force of attraction. So, a high amount of energy is required to break these strong intermolecular forces.
• Crystallization: Unlike amorphous solids, ionic chemicals form crystalline structures. Although molecular compounds can form crystals, they rarely do form crystals, and molecular crystals are weaker than ionic crystals. At the atomic level, an ionic crystal is a uniform structure with the positive and negative ions alternating and forming a three-dimensional structure based primarily on the smaller ion uniformly occupying up the vacancies between the bigger ion.
• When dissolved in water, they conduct electricity: Ionic compounds are soluble in water, and the dispersed ions are available to pass electric charge all through the solution. Molten ionic compounds carry electricity as well (molten salts).
• Brittle and hard: Ionic compounds are hard to isolate because positive and negative ions are firmly attached to each other; nevertheless, when force is exerted on an ionic crystal, ions of similar charge may be forced closer together. Because repulsive forces can be powerful enough just to rupture the crystal, ionic solids are fragile.