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

Assignment, Redox systems in bioinorganic chemistry

Redox systems in bioinorganic chemistry

Why the rate of ketone halogenation is independent, Why the rate of ketone ...

Why the rate of ketone halogenation is independent Because the rate of ketone halogenation is independent of the halogen concentration, the rates of halogenation of the same ke

Number of unpaired electrons in the ground state, Number of unpaired electr...

Number of unpaired electrons in the ground state of beryllium atom is: (1) 2        (2) 1        (3) 0        (4) All the above Ans: 0

Show the basic characteristics of organic compounds, Q. Show the basic Char...

Q. Show the basic Characteristics of Organic Compounds? Ans. Almost all organic compounds contain the elements of hydrogen and carbon. These compounds often contain

Acid-base titrations - types of titrations, Acid-base titrations - Types of...

Acid-base titrations - Types of titrations While the strength of an acid is determined along with the help of a standard solution of base, it is termed as acidimetry. Similarly

Minimum reflux ratio for the separation, Crude oil is separated into severa...

Crude oil is separated into several fractions, each of these fractions are composed of many undefined hydrocarbon components. For simplicity, the crude oil is assumed to be a mixtu

Determine mass of an electron, Q. Determine mass of an electron? Ans. ...

Q. Determine mass of an electron? Ans. Three years later after J.J Thomson discovered the electron, the American scientist Robert Millikan used an oil drop experiment to accu

Co-ordination compound, The hybradization state of the Fe among [Fe(CN)6]3-...

The hybradization state of the Fe among [Fe(CN)6]3-,[Fe(CO)5] and [Fe(H2O)6]2+ is   Ans) D2SP3,DSP3,SP3D2

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