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  4. Chemistry
  5. The Solid State / ठोस प्रावस्था

12th Class Chemistry The Solid State / ठोस प्रावस्था

  • question_answer 45)
    Gold (atomic radius = 0.144 nm) crystallises in a face centred unit cell. What is the length of a side of the cell?

    Answer:

    r = 0.144 nm; Z = 4 (fcc) For fcc unit cell,     or            a = r x 2 x 0144 nm x 2 x 1 × 414 = 0407 nm  


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