Potassium has a bcc structure with nearest neighbour distance $4.52\,\mathop {\rm A}\limits^ \circ .$ Its atomic weight is 39. Its density will be :

$910\,{\rm{kg}}{{\rm{m}}^{ - 3}}$

$454\,{\rm{kg}}{{\rm{m}}^{ - 3}}$

$804\,{\rm{kg}}{{\rm{m}}^{ - 3}}$

$852\,{\rm{kg}}{{\rm{m}}^{ - 3}}$

NEET UG CHEMISTRY MCQ: SOLID STATE

1 Hard

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Application +4 | -1

Potassium has a bcc structure with nearest neighbour distance

4.52\,\mathop \mathrm{A}\limits^ \circ .

Its atomic weight is 39. Its density will be :

View answer and explanation

Correct option: D

910\,\mathrm{kg}{\mathrm{m}^{ - 3}}

Option D (

910\,\mathrm{kg}{\mathrm{m}^{ - 3}}

) is correct because it is the density calculated using the bcc structure formula, nearest neighbor distance, and atomic weight.