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Ionic solids are neither meliable nor ductile but they are brittle in nature. Why?

Ionic solids are neither meliable nor ductile but they are brittle in nature. Why?

Grade:12

1 Answers

rake
askIITians Faculty 73 Points
8 years ago

Ionic solids are hard as they are made up of oppositely charged ions which are linked together with very strong electrostatic force.

These oppositely charged ions are arranged in the forms of layers.


171-131_1.png

When force is applied on ionic solids, ions rearrange so that ions of similar charge align i.e. like charges come over each other which results in electrostatic repulsion and the bonds break.


171-907_2.png

This is the reason why ionic solids are brittle.

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