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COMEDK2014ChemistrySolid State

85 . The radius of an atom is 300 pm . If it crystallises in a face-centered cubic lattice, the length of the edge of the unit cell is

Options

  1. A488.5 pm
  2. B848.5 pm
  3. C884.5 pm
  4. D484.5 pm

Correct answer

B. 848.5 pm

Step-by-step solution

For fcc, a=2 2 r =2 1.414 300 pm =848.5 pm

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