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The Solid State
Question
Name the parameters that characterize a unit cell.
Solution
Unit cell is the smallest portion of a crystal lattice.
A unit cell is characterized by:
(i) its dimensions along the three edges a, b and c. These edges may or may not be mutually perpendicular.
(ii) angles between the edges, α (between b and c), β (between a and c),γ (between a, and b). Thus, a unit cell is characterised by six parameters, a, b, c, α, β and γ.
Some More Questions From The Solid State Chapter
Give the significance of a 'lattice point'.
Name the parameters that characterize a unit cell.
Distinguish between Hexagonal and monoclinic unit cells.
Distinguish between Face-centred and end-centred unit cells.
What is the two-dimensional coordination number of a molecule in square close packed layer ?
A compound is formed by two elements M and N. The element N forms ccp and atoms of M occupy 1/3 of tetrahedral voids. What is the formula of the compound?
Which of the following lattices has the highest packing efficiency:
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Mock Test Series
Mock Test Series