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Copper has face-centred cubic ( FCC ) lattice with interatomic spacing equal to 2.54 A. The value of lattice constant for this lattice is

1.27 A^o

5.08 A^o

2.54 A^o

3.59 A^o

Solution

3.59 A^o

Denoting a crystal structure in which there is an atom at each vertex and at the centre of each face of the unit cell.

lnteratomic spacing for a FCC lattice

$r = {[{(\frac{a}{2})}^{2} + {(\frac{a}{2})}^{2} + {(0)}^{2}]}^{\frac{1}{2}} = \frac{a}{\sqrt{2}} a being lattice constant a = \sqrt{2 r} = \sqrt{2} \times 2.54 a = 3.59 A^{o}$

Note:- interatomic spacing is just the nearest neighbours distance.

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Atoms

Copper has face-centred cubic ( FCC ) lattice with interatomic spacing equal to 2.54 A. The value of lattice constant for this lattice is

1.27 A^o

5.08 A^o

2.54 A^o

3.59 A^o

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For Daily Free Study Material Join wiredfaculty

Atoms

Copper has face-centred cubic ( FCC ) lattice with interatomic spacing equal to 2.54 A. The value of lattice constant for this lattice is 1.27 Ao 5.08 Ao 2.54 Ao 3.59 Ao

Some More Questions From Atoms Chapter

J.J. Thomson's cathode ray tube experiment demonstrated- that

Total energy of an electron in hydrogen atoms above 0 eV leads to

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Copper has face-centred cubic ( FCC ) lattice with interatomic spacing equal to 2.54 A. The value of lattice constant for this lattice is

1.27 A^o

5.08 A^o

2.54 A^o

3.59 A^o