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Question
How are the crystalline solids classified?
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Solution
The types of the four main classes of crystalline solids:
- Ionic solids: Constituent particles are cations and anions. An examples are sodium chloride (NaCl), magnesium oxide (MgO), etc.
- Covalent network solids: Constituent particles are atoms. An examples are diamond, quartz (SiO2), silicon carbide (SiC), etc.
- Molecular solids: Constituent particles are monoatomic or polyatomic molecules. An examples are iodine (I2), dry ice (solid CO2), ice (solid H2O), etc.
- Metallic solids: Constituent particles are metallic ions in a sea of electrons. An examples are copper (Cu), iron (Fe), silver (Ag), etc.
RELATED QUESTIONS
The major binding force in diamond is_______________ .
(a) Covalent bond
(b) Ionic bond
(c) Metallic bond
(d) Co-ordinate covalent bond
Classify the following molecular solids into different types:
- HCl
- CO2
- Solid ice
- SO2
A compound crystallizes in bcc structure. What is unit cell edge length if diameter of its atom is 120 pm?
Graphite and diamond are ____________.
The ionic radii of A+ and B− are 0.98 × 10−10 m and 1.81 × 10−10 m. The coordination number of each ion in AB is ______.
____________ is an example of molecular crystal.
Fullerene is an example of ____________.
London forces are present in ____________.
Which of the following is not the characteristic of ionic solids?
Graphite is a ______.
