a metal crystallizes with a face-centere...

a metal crystallizes with a face-centered cubic lattice.The edge of the unit cell is `408` pm. The diameter of the metal atom is :

288 pm

408 pm

144 pm

204 pm

Text Solution

Verified by Experts

The correct Answer is:

For fcc lattice, `r=a/(2sqrt2)`=0.3535 a
=0.3535 x 408 pm =144 pm
`therefore` Diameter=2r =288 pm

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