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प्रश्न
Cu crystallizes in fcc unit cell with edge length of 495 pm. What is the radius of Cu atom?
उत्तर
Given: Type of unit cell is fcc.
Edge length of unit cell (a) = 495 pm
To find: Radius of Cu atom (r)
Formula: For fcc unit cell, r = 0.3535 a
Calculation: Using the formula,
r = 0.3535 a
= 0.3535 × 495 pm = 175 pm
The radius of Cu atom (r) is 175 pm.
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