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Q.

Nickel crystallizes in an fcc unit cell with a cell-edge length of 0.3524nm. Calculate the radius of the nickel atom

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a

0.1624 nm

b

0.1246 nm

c

0.2164 nm

d

0.1426 nm

answer is B.

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Detailed Solution

For an fee lattice, dface=a2 or 4rm=a2

rNt=a24=24×0.3524=0.1246nm

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