InterviewSolution
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InterviewSolution
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Potassium crystallizes in body centered cubic lattice with a unit cell length `a = 5.2 Å` (A) what is the distance betweenn nearest neighbourss? (B) What is the distance between next nearest neighbour ? (C) How many nearest neighbours does each K atom have ? (D) How many next nearest neighbours does each K has ? (E) What is calculated density of crystalline K |
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Answer» Correct Answer - A::B::C::D (A) `2r = (sqrt3a)/(2) = (sqrt3 xx 5.2)/(2) = 4.5 B9Å` (C) 8 (D) 6 (E) `d = (2 xx 39)/((5.2 xx 10^(-8))^(3) xx 6.02 xx 10^(23)) =` 0.92 g/mL |
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