Question

Question #9aad2

Answer 1

Classification of crystalline solids
(Criteria - Type of constituent particles and nature of bondage existing between them )

Details in a tabular form

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 .

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

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.

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 .