Describe structure of solids, Chemistry

Assignment Help:

Q. Describe Structure of Solids?

Ans.

Solids are different from gases and liquids because they have a fixed shape. This definite shape occurs as the individual particles which make up the solid are fixed in position. Most solids are crystalline solids and have a well-defined crystal structure.

Solids can be composed of three types of particles: atoms, molecules, and ions. The three types of solids have very different properties because the attractive forces that hold the crystal together are different.

There are a few solids, such as glass and paraffin, which have definite shape and volume but have no definite internal structure or form. Such solids are called amorphous solids.

The structure of solids can be best described with a crystal structure system. A unit cell (refer to figure below) is the smallest block-like unit from which the larger crystal can be built.

As illustrated below, there are three kinds of unit cells: simple cubic, body-centered cubic, and face-centered cubic. The simple cubic unit cell looks like an empty cube. The body-centered cubic unit cell has a single atom within the cube.

2311_Describe Structure of Solids.gif

The four kinds of crystalline solids that will be discussed in the next section are:

  • Metallic solids
  • Covalent network solids
  • Molecular solids
  • Ionic solids

 


Related Discussions:- Describe structure of solids

What do you mean by sensory perception, Q. What do you mean by sensory perc...

Q. What do you mean by sensory perception? The appearance of a food can be evaluated in terms of colour, surface characteristics such as smoothness of a surface, dry surface, g

Metion the food product of grapes, Grapes The components of grapes and g...

Grapes The components of grapes and grape products believed to play a significant role in preventing or delaying the onset of diseases including cancer and cardiovascular diseas

Calculate the mean heat capacity, a) Calculate the energy required to heat ...

a) Calculate the energy required to heat 1kg of CO 2 from 400 o C to 600 o C at a constant pressure of 1atm using:- i) The mean heat capacity data given below ii) The heat c

What is diborane, Q. What is Diborane? The chemistry of diborane has ar...

Q. What is Diborane? The chemistry of diborane has aroused considerable interest because of its usefulness in many synthetic reactions and also because the elucidation of its s

Ionic and covalent bonds, Ionic and covalent bonds are present in: (1) ...

Ionic and covalent bonds are present in: (1)  CCl 4                                               (2)  CaCl 2              (3)  NH 4 Cl

Basic dyes - classification of dyes, Basic dyes: These types of dyes a...

Basic dyes: These types of dyes are the hydrochlorides or zinc chloride salts of colour bases comprising basic group sets. These dyes act along with anionic sites available on

Electricity, when will conductors conduct electricity?

when will conductors conduct electricity?

2-naphthol, What are two factors that contribute to the acidity of 2-naphth...

What are two factors that contribute to the acidity of 2-naphthol

Analysis, factors affecting TLC in points

factors affecting TLC in points

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