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Al ( at . Wt . 26.98 ) crystallizes ...

Al ( at . Wt . 26.98 ) crystallizes in the cubic d system with `a oo 4.05` Å . Its density is 2.7 g per `cm^(3)` . Determine the cell type Calculate the radius of Al atom .

A

fcc, 2.432 Å

B

bcc, 2.432 Å

C

bcc, 1.432 Å

D

fcc, 1.432 Å

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • Al (atomic mass =27) crystallises in a cubic system with edge length (a) equal to 4Å its density is 2.7 g//cm^(3) The type of the unit cell is:

    A
    Simple
    B
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    C
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    A
    `1.93times10^(-3)cm`
    B
    `1.93times10^(-8) cm`
    C
    `1.93times10^(-8)Å`
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