Question #9aad2

1 Answer
Jan 22, 2017

Classification of crystalline solids
(Criteria - Type of constituent particles and nature of bondage existing between them )
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Details in a tabular form

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Now let us classify our given solids and view their crystal structures.

1.Sodium sulfide, #N_2S=>color(red)"(IONIC)"#
The constituent particles, #Na^+ and S^"2-"# ions are associated with ionic bondage .

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2. Carbon tetrachloride, #C Cl_4=>color(red)"(MOLECULAR)"#
The constituent particles are tetrahedral #C Cl_4# molecules associated with vander waal's forces .

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3, Calcium metal, #Ca=>color(red)"(METALLIC)"#
In this crystal #Ca^"2+"# ions are boded with metallic bonds , where cations are in the sea of delocalized valence electrons of the metal atoms existing in the piece of crystal.
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4. C(diamond), #=>color(red)"(COVALENT-NETWORK)"#

Here #C# atoms are connected incovalent bond network where each C atom is linked with 4 C atoms tetrahdrally by strong covalent bond .

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