1
Question
Distinguishbetween
(i)Hexagonaland monoclinic unit cells
(ii)Face-centredand end-centred unit cells.
Distinguishbetween
(i)Hexagonaland monoclinic unit cells
(ii)Face-centredand end-centred unit cells.
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Solution
(i) Hexagonalunit cell
Fora hexagonal unit cell,
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Monoclinicunit cell
Fora monoclinic cell,
_20-11-08_Utpal_12_Chemistry_1_24_html_5838b036.gif)
(ii) Face-centredunit cell
Ina face-centred unit cell, the constituentparticles are present at the corners and one at the centre of eachface.
End-centredunit cell
Anend-centred unit cell contains particles at the corners and one atthe centre of any two opposite faces.
(i) Hexagonalunit cell
Fora hexagonal unit cell,
Monoclinicunit cell
Fora monoclinic cell,
(ii) Face-centredunit cell
Ina face-centred unit cell, the constituentparticles are present at the corners and one at the centre of eachface.
End-centredunit cell
Anend-centred unit cell contains particles at the corners and one atthe centre of any two opposite faces.
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