Class 12 Chemistry The Solid State Unit Cells

Unit Cells

Unit cell can be described as the smallest portion of a crystal lattice.

A unit cell is characterized by:

(i) Its dimensions along the three edges, a, b and c which may or may not be mutually perpendicular.


  • Angles between the edges, α (between b and c) β (between and c) and γ (between a and b). Thus, a unit cell is characterized by six parameters a, b, c, α, β and γ.

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