What are the physical properties of solids?, Chemistry

Assignment Help:

Q. What are the physical properties of solids?

Ans.

Most solids eventually melt when heated. This is because the particles gain enough energy to exceed the attractive forces which hold them in their fixed lattice positions. The normal melting point of a crystal is the temperature at which it melts under 1 atm pressure.

The four types of solids are ionic solids, molecular solids, metallic solids, and covalent network solids:

  • Ionic Solids. The attractive forces between oppositely charged ions in an ionic solid are very strong. Therefore, ionic solids have very high melting points.
  • Molecular Solids. Molecular crystals (such as sulfur) are usually held together by weak electrical forces. These solids therefore have lower melting points than ionic solids.
  • Metallic Solids. Metallic solids are good electrical conductors because of the sea of electrons which are free to move throughout the solid. 
  • Covalent Network Solids. These solids are held together by a network of directional covalent bonds. The entire network can be considered one giant molecule! The atoms of covalent network solids are hard to break up. Their melting points are very high. Diamond, a form of carbon, is an example of a covalent network solid.

Related Discussions:- What are the physical properties of solids?

Dehydration or decarboxylation of acids, Dehydration or Decarboxylation of ...

Dehydration or Decarboxylation of acids by MnO/300°C (1) This reaction occurs among two molecules of carboxylic acids. Both can be the same or different. (2) If one of the c

Addition polymerization, Addition polymerization: It involves following th...

Addition polymerization: It involves following three mechanisms: 1.                 Free radical polymerization 2.                 Ionic polymerization mechanism 3.

What are the disadvantages of cold working, What are the Disadvantages of c...

What are the Disadvantages of cold working (i) Higher forces are required for deformation. (ii) Heavier and more powerful equipment is required. (iii) May produce undesir

Determine the limiting reactant, 1. Wet air containing 4.0 mole% water vapo...

1. Wet air containing 4.0 mole% water vapor  at 76°F and 14.8 psia is passed through a column of calcium chloride pellets.   The pellets absorb 97% of the water and none of the oth

Resonance, Sometimes more than one valence structure is possible and there ...

Sometimes more than one valence structure is possible and there shows to be no unique assignment. A familiar organic example is in the disposition of single and double C-C bonds in

Illustrate egg white foams, Q. Illustrate Egg White Foams? Egg white fo...

Q. Illustrate Egg White Foams? Egg white foams when whipped or beaten, the air gets entrapped in the liquid present, and an interfacial tension is established between the ai

Predominant phosphate species present in buffers solution, In lab, you're h...

In lab, you're having fun along with buffers based onto a 0.1 M solution of sodium phosphate at pH7.0.  Into this system, there are three of pK A s as:  12.7, 7.21 and 2.12.

Which of the following is not isoelectronic, Which of the following is not ...

Which of the following is not isoelectronic : (1) Na +                 (2) Mg 2+                          (3) O 2-                        (4) Cl - Ans:(d)Cl -

Solvent effect of UV, what is the solvent effect on transition metal?

what is the solvent effect on transition metal?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd