Solid StateHard
Question
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
A.288 pm
B.408 pm
C.144 pm
D.204 pm
Solution
For fcc lattice,
4r = √2a
= 144 pm;
diameter d = 2r = 2 × 144 pm
= 288 pm
4r = √2a
= 144 pm;
diameter d = 2r = 2 × 144 pm
= 288 pm
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