Classify unit cells on the basis of position of constituent particles in them
Answers
Unit cells can be broadly divided into two categories, i) Primitive and ii) Centred unit cells. (a) Primitive Unit Cells : When constituent particles are present only on the corner positions of a unit cell, it is called a primitive unit cell.
Answer: The smallest repeating unit of the crystal lattice is the unit cell, the building block of a crystal.
The unit cells which are all identical are defined in such a way that they fill space without overlapping. The 3D arrangement of atoms, molecules or ions inside a crystal is called a crystal lattice. It is made up of numerous unit cells. One of the three constituent particles takes up every lattice point.
Types of Unit Cell
Numerous unit cells together make a crystal lattice. Constituent particles like atoms, molecules are also present. Each lattice point is occupied by one such particle.
1)Primitive Cubic Unit Cell
2)Body-centered Cubic Unit Cell
3)Face centered cubic unit cell
Explanation: