A metal has a density of 8.9 g/cm³ and atomic weight 63.5 g/mol. If it has a FCC structure, what is the lattice parameter?
Q1. A metal has a density of 8.9 g/cm³ and atomic weight 63.5 g/mol. If it has a FCC structure, what is the lattice parameter?
Answer: 3.6 Å
Explanation: Using the formula ρ = nM / (N_A a³), we can find a = (nM / (N_A ρ))^(1/3) = 3.6 Å for n = 4 in FCC.