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Al crystalles in cubic unit cell and edge length 405 pico and density = 2.7 gm/ cc predict the crystal |
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Answer» Theoretical density of crystal, ρ= N o a 3 NM g/cm 3 Given, ρ=2.70 g/cm 3 , a=405×10 −10 cm, M=26⇒n= MρN o ×a 3 = 262.70×6.022×10 23 ×(405) 3 ×10 −30 ⇒n=4So, it is a face centered cubic cell.Hence, Option "B" is the correct answer. I just tried .. |
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