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Ag (atomic weight = 108) forms cubic clo...

Ag (atomic weight = 108) forms cubic close-packed crystal structure. What is the length of the unit cell of Ag crystal if the density of Ag is `10.6g*cm^(-3)`?

Text Solution

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`a^(3)=(ZxxM)/(rhoxxN)=(4xx108)/(10.6xx6.022xx10^(23))` [for fcc unit cell Z = 4]
`thereforea=4.07xx10^(-8)cm` = 407pm
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