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Aluminium crystallizes in an FCC structa...

Aluminium crystallizes in an FCC structare. Atomic radius of the metal is 125pm. Calculate the edge length of unit cell of the metal. 

Text Solution

Verified by Experts

The relationship between a and r (radius of the sphere) is
`a=2sqrt2xxr=2sqrt2xx125="353.5pm"`
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Knowledge Check

  • Aluminium crystallizes in a ccp structure. Its metallic radius is 125pm. The number of unit cells in 1.00 cm^(3) of Al are

    A
    `2.27 xx 10^(22)`
    B
    `1.13 xx 10^(20)`
    C
    `2.26 xx 10^(26)`
    D
    `1.13 xx 10^(23)`