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Which of the following exists as covalent crystals in the solid state? (1) Silicon (2) Sulphur (3) Phosphorous (4) Iodine

Which of the following exists as covalent crystals in the solid state?
(1) Silicon (2) Sulphur (3) Phosphorous (4) Iodine

Grade:11

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
Arun
25750 Points
3 years ago
Covalent crystals are formed by sharing of valence electrons between two atoms resulting in the formation of a covalent bond. 
 
The covalent bonds extend in two or three dimensions forming a giant interlocking structure called network. Diamond and graphite are the good examples of this type
.
Silicon (Si): Covalent solid
Sulphur (S 
8
​ 
 ): Molecular solid
Phosphorus (P 
4
​ 
 ) : Molecular solid
Iodine (I 
2
​ 
 ) : Molecular solid

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