Question

write the charecterstics of covalent network crystals ​

Answer 1

Explanation:

properties. Covalent crystals are hard, frequently brittle materials such as diamond, silicon, and silicon carbide. In the simpler, monatomic types (e.g., diamond), each atom is surrounded by a number of atoms equal to its valence. Molecular crystals are substances that have relatively weak intermolecular binding, such ...

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Answer 2

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Charecterstics for covalent network crystals :

i. The constituent particles in covalent

network solids are atoms.

ii. The atoms in these crystals are linked by a

continous system of covalent bonds. The result is a rigid three dimensional network that forms a giant molecule. The entire crystal is a single molecule.

iii. As a result of rigid and strongly bonded structure, covalent network crystals are very hard. In fact they are the hardest and most incompressible of all the materials. These crystals have high melting and boiling points.

iv. The electrons are localised in covalent

bonds and hence are not mobile. As a result, covalent solids are poor conductorsof heat and electricity.