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Course: Class 12 Chemistry (India) > Unit 1

Lesson 4: Packing and packing efficiency in cubic cells
Science
Class 12 Chemistry (India)
The Solid State
Packing and packing efficiency in cubic cells
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Identifying the relation between the radius of an atom and the edge length of a unit cell.

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Problem

The image below shows a 2D unit cell formed by Y atoms.
The length of the unit cell is labelled as b and the width is labelled as a.
Which of the following depict the relationship between the unit cell dimensions (a and b) and the radius (r) of a Y atom?
Choose all answers that apply: