Question

Aluminium crystallizes in a fcc structure. Atomic radius of the metal is 125pm. Calculate
the edge length of the unit cell of a metal.​

Answer 1

Answer:

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=2

2

r

a=2×1.414×125pm≈354pm

So, the the edge length of unit cell of the metal is 354 pm.

hope it helped u out

Answer 2

Answer:

ExplaFor 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=2

2

r

a=2×1.414×125pm≈354pm

So, the the edge length of unit cell of the metal is 354 pm.nation: