What is the difference between crystal lattice and unit cell?

Asked by manasd | 27th Nov, 2016, 10:09: PM

Expert Answer:

Crystal lattice:

A regular arrangement of the constituent particles, i.e. atoms, ions or molecules of a crystal, in three-dimensional space.

When the constituent particles are represented by dot (.), the periodic and systematic arrangement of these dots in three dimensions is called Crystal lattice.

 

Unit cell:

Smallest three-dimensional portion of a complete space lattice which when repeated over and again in different directions produces the complete space lattice

If we repeat unit cell in all dimensions, we obtain a structure of the crystal.

The properties of unit cell are measured by length of edges and the angles between the edges.

Answered by Vaibhav Chavan | 28th Nov, 2016, 09:11: AM

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