The radius of an atom of an element is 500 pm. If it crystallizes as a face centred cubic lattice, what is the length of the side of the unit cell ?

The radius of an atom of an element is 500 pm. If it crystallizes as a

1.	The radius of an atom of an element is 500 pm. If it crystallizes as a face centred cubic lattice, what is the length of the side of the unit cell ?
Answer» SOLUTION :For FCC, `r=a/(2SQRT2)` or `a=2sqrt2r=2xx1.414xx500` PM =1414 pm