Q-Distinguish between Hexagonal and Monoclinic unit cell
Answer- The main difference between Hexagonal unit cells and Monoclinic unit cells are as follows:
| Hexagonal unit cell | Monoclinic unit cell | |
| 1. | The hexagonal unit cell has a Hexagonal crystal system | The monoclinic unit cell has a monoclinic crystal system |
| 2. | There is no parallelogram structure. | There is a parallelogram structure as the base of the unit cell. |
| 3. | Hexagonal unit cells have two axes with equal lengths and one axis with unequal length (a=b≠c) | Monoclinic unit cells have three axes with unequal lengths (a≠b≠c) |
| 4. | The angel α and β are equal to 90° and the γ angel is equal to 120° | The angle α and γ is equal to 90° and the β angle is not equal to 90° |
Some Important Questions
- Name the parameters that characterize a unit cell
- Give the significance of a lattice point
- What is the two dimensional coordination number of a molecule in square close packed layer
Frequently Asked Questions
Distinguish between Hexagonal and Monoclinic unit cell class 12
The hexagonal unit cell is those unit cells having a Hexagonal crystal system and no parallelogram structure. On the other hand, the monoclinic unit cell is those unit cells having a monoclinic crystal system and a parallelogram structure as a base.
Distinguish between Monoclinic and Hexagonal unit cell
1. The Monoclinic unit cells have a monoclinic crystal system whereas the hexagonal unit cells have a hexagonal crystal system.
2. The Monoclinic unit cells have a parallelogram structure whereas hexagonal unit cells do not have any parallelogram structure.