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Copper crystallizes in fcc with a unit c...

Copper crystallizes in fcc with a unit cell length of 361 pm. What is the radius of copper atom ?

A

108 pm

B

127 pm

C

157 pm

D

181pm

Text Solution

Verified by Experts

The correct Answer is:
B
For fcc structure
`r = ( a)/( 2sqrt(2)) = ( 361)/( 2sqrt(2)) = ( 361)/( 2 xx 1.414)`
`= 127.6 `pm
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Knowledge Check

  • Copper crystallises in fcc lattice with a unit cell edge of 361 pm. The radius of copper atom is :

    A
    108pm
    B
    128 pm
    C
    157 pm
    D
    181 pm

  • Copper crystallizes in a face-centred cublic lattice with a unit cell length of 361pm. What is the radius of copper atom in pm ?

    A
    157
    B
    181
    C
    108
    D
    128

  • A compound AB crystallized in bcc lattice with unit cell edge length of 480 pm. If the radius of B^(-) is 225pm, then the radius of A^(+) is

    A
    225 pm
    B
    190.7pm
    C
    129.6pm
    D
    132.8pm

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