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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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Answer» Solution :`a=405pm = 405xx10^(-12)m` `d= FRAC{zM}{a^3N} therefore z= frac {da^3N}{M}=4` Since there are 4 atoms present per UNIT CELL, it is FACE centred cubic unit cell or cep structure. |
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