SQRT{3}}{2}a\]or \[a=\frac{2d}{\sqrt{3}}=\frac{2\TIMES 4.52}{1.732}=5.219\text{{ }\!\!\mathrm{\AA}\!\!\text{ }}=522\,pm\]           \[\rho =\frac{Z\times M}{{{a}^{3}}\times {{N}_{0}}\times {{10}^{-30}}}\]\[=\frac{2\times 39}{{{(522)}^{3}}\times (6.023\times {{10}^{23}})\times {{10}^{-30}}}\]                                   \[=0.91\,g/c{{m}^{3}}=910\,kg\,{{m}^{-3}}\]

"> SQRT{3}}{2}a\]or \[a=\frac{2d}{\sqrt{3}}=\frac{2\TIMES 4.52}{1.732}=5.219\text{{ }\!\!\mathrm{\AA}\!\!\text{ }}=522\,pm\]           \[\rho =\frac{Z\times M}{{{a}^{3}}\times {{N}_{0}}\times {{10}^{-30}}}\]\[=\frac{2\times 39}{{{(522)}^{3}}\times (6.023\times {{10}^{23}})\times {{10}^{-30}}}\]                                   \[=0.91\,g/c{{m}^{3}}=910\,kg\,{{m}^{-3}}\]

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Potassium has a \[bcc\] structure with nearest neighbour distance \[4.52\,\,{AA}.\] Its atomic weight is 39. Its density (in \[kg\,\,{{m}^{-3}}\])  will be        [AIIMS 1991]

Joint Entrance Exam - Main (JEE Main) Chemistry in Joint Entrance Exam - Main (JEE Main) 11 months ago

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For bcc,\[d=\frac{\SQRT{3}}{2}a\]or \[a=\frac{2d}{\sqrt{3}}=\frac{2\TIMES 4.52}{1.732}=5.219\text{{ }\!\!\mathrm{\AA}\!\!\text{ }}=522\,pm\]           \[\rho =\frac{Z\times M}{{{a}^{3}}\times {{N}_{0}}\times {{10}^{-30}}}\]\[=\frac{2\times 39}{{{(522)}^{3}}\times (6.023\times {{10}^{23}})\times {{10}^{-30}}}\]                                   \[=0.91\,g/c{{m}^{3}}=910\,kg\,{{m}^{-3}}\]

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Posted on 26 Aug 2024, this text provides information on Joint Entrance Exam - Main (JEE Main) related to Chemistry in Joint Entrance Exam - Main (JEE Main). Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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