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NEET2005ChemistrySolid StateActual

Copper has face centered cubic (fcc) lattice with interatomic spacing equal to 2.54 Å . The value of lattice constant for this lattice is:

Options

  1. A2.54 Å
  2. B3.59 Å
  3. C1.27 Å
  4. D5.08 Å

Correct answer

B. 3.59 Å

Step-by-step solution

Given 2 =2.54 Å r= 2.54 2 =1.27 Å For fcc lattice: aligned r & = a 2 2 a & =r 2 2 & =1.27 2 1.44 & =3.59 ~A ^ aligned

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