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Suppose the mass of a single Ag atom is ...

Suppose the mass of a single Ag atom is m. Ag metal crystallizes in fcc lattice with unit cell of length a. The density of Ag metal in terms of a and m is

A

`(4m)/(a^(3))`

B

`(2m)/(a^(3))`

C

`m/(a^(3))`

D

`m/(4a^(3))`

Text Solution

Verified by Experts

Density `=("Mass of the unit cell")/("Volume of the unit cell")`
`=("No. of atoms" xx "Mass of each atom")/("Volume of the unit cell")`
`=(4xxm)/(a^(3))` (`:.` in fcc, no of atoms =4)
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