Question

28. Aluminium crystallises in a fcc structure. Atomic radius of metal is 125 pm. What is
the length of the side of the unit cell of the metal?​

Answer 1

Explanation:

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Answer 2

Answer:

354.

Explanation:

For the fcc structure, let us consider a is the edge of the cube and r is the radius of atom.

Given that r is equals to 125 pm,

a=2root2r

a=2×1.414×125pm=354pm