1.

A given metal crystallizes out in a cubic structure having edge length of 361 pm. If there are four metal atoms in one unit cell, what is the radius of one atom ?

Answer»

80 pm 
108 pm 
40 pm 
127 pm 

Solution :For FCC STRUCTURE `r = a/(2sqrt2)`
`r = (361)/(2sqrt2)` = 127 pm


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