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NEET2009ChemistrySolid StateActual

Copper crystallises in a face-centred cubic lattice with a unit cell length of 361 pm . What is the radius of copper atom in pm ?

Options

  1. A128
  2. B157
  3. C181
  4. D108

Correct answer

A. 128

Step-by-step solution

In case of face-centred cubic lattice, radius = 2 a 4 Radius of copper atom ( lattice) = 2 361 4 =128 pm .

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