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Alluminium crystallizes in cubic close packed structure with unit cell edge 353.6 pm . What is the radius of Al atom ? How many unit cells are there in 1.00 cm3 of Al? (125pm, 2.26×1022)

from Chemistry 12th Maharashtra board
in Chapter1:Rotational Dynamics by Expert (11.1k points)
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correct answer is r=125pm units=2.26×1022 

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