Question

ionic solids are hard and brittle. Explain.

Answer 1

Answer:

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Explanation:

Ionic solids are hard and brittle. Ionic solids are hard due to the presence of strong electrostatic forces of attraction. The brittleness in ionic crystals is due to the non- directional bonds in them.

Answer 2

Answer:

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◗ 　Ionic solids are hard because of strong forces of attraction between oppositely charged ions .

◗ 　Ionic solids are brittle and bond breaks when a force is applied .

◆ Ionic solids are made up of positive and negative ions arranged in a regular way in lattice .

◆ The attraction between ions is electrostatic and non-directional extending equal in all directions .

◆Hence, for breaking this bond they require considerable energy and thus ionic solids are hard and brittle .

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