Copper crystallises in face-centred cubic lattice and has density o...

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Copper crystallises in face-centred cubic lattice and has density of \( 8.930 \mathrm{~g} \mathrm{~cm}^{-3} \) at \( 293 \mathrm{~K} \). Calculate the radius of copper atom.
\( \mathrm{P} \) [Atomic mass of \( \mathrm{Cu}=63.55 \mathrm{u}, \mathrm{N}_{\mathrm{A}}=6.02 \times 10^{23} \mathrm{~mol}^{-1} \) ]

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