Packing efficiency in Body-centred cubic structures
Now consider the unit cell of body-centred cubic in which sphere ABCDEFGH are occupied at corner. And sphere c is placed at body-centre of...
Packing Efficiency
Packing efficiency is defined as the percentage of total space filled by the constituent particles in a crystal.
Packing efficiency in hcp and ccp structures:
Let...
Close Packed Structures
Close-Packed Structures
As we the constituent particles in solid are in form of a sphere. The spheres in solid are arranged in the different way...
Primitive unit cell
Primitive unit cell:
In a Primitive unit cell, atoms are present at the corner only. An atom is shared by 8 unit cell. Hence the...
Characteristics of a Unit Cell
A unit cell is characterized by 6 parameters:
3-edges a, b and c (refer the diagram given above). The edges may...
Crystal Lattices and Unit Cells
Crystal Lattices:
A crystalline solid consist of a large number of small units, called crystals, each of which possesses a definite geometric shape bounded by...
Classification of Crystalline Solid
Classification of Crystalline Solid
Molecular solids:
Those solids which consist of small molecules are called molecular solids.
1. Non - polar molecular solids:
The...
Classification of Solids
Solids are classified on the basis of the arrangement of their constituent particles.
Crystalline solids:
In a single crystal, the regularity of arrangement of the pattern...
States of Matter
Three states of matter are solid, liquid and gas. Amongst them, liquid and gases are called fluids because of their ability to flow. But...