A metal has a FCC lattice. The edge length of the unit cell is \( 404 \mathrm{pm} \). The densit...

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A metal has a FCC lattice. The edge length of the unit cell is \( 404 \mathrm{pm} \). The density of the metal is
\( \mathrm{P} \)
\( 2.72 \mathrm{~g} \mathrm{~cm}^{-3} \). The molar mass of the metal is:
W
(A) \( 30 \mathrm{~g} \mathrm{~mol}^{-1} \)
(B) \( 27 \mathrm{~g} \mathrm{~mol}^{-1} \)
(C) \( 20 \mathrm{~g} \mathrm{~mol}^{-1} \)
(D) \( 40 \mathrm{~g} \mathrm{~mol}^{-1} \)
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