An element crystallises in a structure having fcc unit cell of an edge \( 200 \mathrm{pm} \). Ca...

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An element crystallises in a structure having fcc unit cell of an edge \( 200 \mathrm{pm} \). Calculate the density if \( 200 \mathrm{~g} \) of this element contains \( 24 \times 10^{23} \) atom.
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