An alloy of copper, silver and gold is found to have copper constituting the face-centred cubic (FCC — Solid State Chemistry Question
Question
An alloy of copper, silver and gold is found to have copper constituting the face-centred cubic (FCC) lattice. If silver atoms occupy the edge centres and gold is present at body centre, the alloy has a formula
Answer: C
💡 Solution & Explanation
Calculate atom contributions: Copper (FCC) = 8*(1/8) + 6*(1/2) = 4 atoms; Silver (edges) = 12*(1/4) = 3 atoms; Gold (body center) = 1*1 = 1 atom. Formula Cu4Ag3Au.
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