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An element with molar mass 2.7xx10^(-2) ...

An element with molar mass `2.7xx10^(-2) "kg mol"^(-1)` forms a cubic unit cell with edge length 405 pm. If its density is `2.7xx10^(3)" kg m"^(-3)` . What is the nature of the cubic unit cell?

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The nature of cubic unit cell is face-centred cubic structure.
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