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

Analytical chemistry, WHAT TYPE OF CHEMICAL REACTION IS INVOLVED IN POTENTI...

WHAT TYPE OF CHEMICAL REACTION IS INVOLVED IN POTENTIOMETRIC TITRATION

Stearic effect - reactivity of aldehydes and keto, Stearic effect - relativ...

Stearic effect - relative reactivity of aldehydes and keto The size of the alkyl group is much more than that of hydrogen. In aldehydes, there is one alkyl set although in keto

Substances, who created or found Styrene

who created or found Styrene

Explain about magnetic separation, Q. Explain about Magnetic Separation ? ...

Q. Explain about Magnetic Separation ? This process is based on the difference in magnetic properties of minerals. If the ore but not the gangue is attracted by a magnetic fiel

Water not bound in the hydrate, A water solution have 64% Na 2 S 2 O 2   to...

A water solution have 64% Na 2 S 2 O 2   together with 1.0% soluble impurity.  Upon cooling to 5°C, Na 2 S 2 O 2 ·5H 2 O. crystallizes out.  The solubility of this hydrate is 1.35

What is its mass number of nonradioactive isotope of florine, The only nonr...

The only nonradioactive isotope of fluorine has 9 protons and 10 neutrons. a. What is its mass number. b. Write the full symbol of this atom.

Periodic classification, what is the diagonol relationship of lithium and m...

what is the diagonol relationship of lithium and magnesium

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