1.

Silver crystallies in face centred cubic (fcc) unit cell. If the radius of silver atom is 145 pm, what is the length of each side of the unit cell ?

Answer»

Solution :For fcc CELL
Radius `= (sqrt(3))/(4)a`
a = 316.5 pm
Radius `= (sqrt(3))/(4) XX 316.5` pm
`= (1.732)/(4) xx 316.5`
= 334.87 pm


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