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NEET2012ChemistrySolid StateActual

A metal crystallizes with a face-centered cubic lattice. The edge of the unit cell is 408 pm . The diameter of the metal atom is

Options

  1. A288 pm
  2. B408 pm
  3. C144 pm
  4. D204 pm

Correct answer

A. 288 pm

Step-by-step solution

For fcc lattice, aligned & 4 r= 2 a & r= 2 4 a= a 2 2 & = 408 2 2 & =144 pm & diameter d=2 r=2 144 pm & =288 pm aligned

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