Density of aluminum (Al) is 2.71 g/cm3, and its atomic weight is 26.98 g/mol. Answer the questions (a)-(b) below.
(a) Based on these data, is it possible to determine whether Al has a BCC or FCC crystal structure without knowing its atomic radius R? If yes, explain how. If not, explain why and use the value R = 1.43 Å to solve part (b) below.
(b) What is the crystal structure of aluminum? Use your answer for part (a) above.

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a To determine whether the crystal lattice is FCC or B... View the full answer