InterviewSolution
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InterviewSolution
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Potassium has a bcc structure with nearest neighour distance `4.52 Å`its atomic weight is `39` its density (in kg `m^(-3)`) will beA. 454B. 804C. 852D. 908 |
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Answer» Correct Answer - D For bcc, d`=sqrt(3)/(2)` a or `a=(2d)/sqrt(3)=(2xx4.52)/(1.732)=5.219overset(@)A`=522pm `rho=(ZxxM)/(a^(3)xxN_(0)xx10^(-30))=(2xx39)/((522)^(3)xx(56.023xx10^(23))xx10^(-30))` `=0.91g//cm^(3)=910kgm^(-3)` |
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