Question
Aluminum crystallizes in an fcc structure. Atomic radius of the metal is 125 pm. What is the length of the side of the unit cell of the metal?
Solution
Aluminum crystallizes in FCC structure atomic radius (r) = 125 pm
Length of the side of the unit cell in FCC structure,
Therefore a= 2 x 1.414 x 125
a = 353.5 pm