Question

Write the value of axial distance and axial angles of triclinic crystal.

Answer 1

Hint: You should recall the notion of a unit cell and different types of Bravais Lattice to answer this question. Bravais Lattice refers to the 14 distinct three-dimensional configurations in which crystal atoms can be arranged. The most uneven crystal with no symmetry between the dimensions is a Triclinic crystal. A unit cell is called the tiniest group of symmetrically aligned atoms that can be repeated in an array to make up the entire crystal.

Complete Step-by-Step Solution
The unit cells are structured systematically in a way that fills the space without overlapping. The $ 3D $ arrangement of atoms, molecules or ions inside a crystal can be defined as a crystal lattice. As a unit cell, each unit of this crystal lattice is known. The most fundamental description is known as the Bravais lattice of any unit cell. The Bravais lattice can refer to one of the $ 14 $ different types of unit cells that can make up a crystal structure.
It obeys the following condition
 $ a\ne b\ne c $
And
 $ \alpha \ne \beta \ne \gamma \ne {{90}^{{}^\circ }} $
Where
 $ a,b,c $ represents the dimensions of unit cells
And
 $ \alpha ,\beta , \gamma $ represents the respective angles of the unit cells.

Note
There are $ 3 $ types of Centred Unit Cells that you should know: Body Centred, Face Centred and End Centred. The atoms are only present at the corners in the case of the primitive cubic unit cell. In the case of a BCC unit cell, each corner of the cube has atoms and the centre of the structure has an atom. On the other hand, at all the corners of the crystal lattice, an FCC unit cell contains atoms and the centre of all the faces of the cube.