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. 454 kg `m^(-3)`B. 804 kg `m^(-3)`C. 852 kg `m^(-3)`D. 908 kg `m^(-3)`

Potassium has a bcc structure with nearest neighour distance `4.52 Å`

1.	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. 454 kg `m^(-3)`B. 804 kg `m^(-3)`C. 852 kg `m^(-3)`D. 908 kg `m^(-3)`
Answer» Correct Answer - D For bcc, `d=(sqrt(3))/(2)a` or `a=(2d)/(sqrt(3))=(2xx4.52)/(1.732)=5.219 Å=522` pm `d=(ZxxM)/(a^(3)xxN_(0)xx10^(-30))=(2xx39)/((522)^(3)xx(6.02xx10^(23))xx10^(-30))`

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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. 454 kg `m^(-3)`B. 804 kg `m^(-3)`C. 852 kg `m^(-3)`D. 908 kg `m^(-3)`

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