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) ORA = 2sqrt2 r = 2 xx 1.414 xx 500 "PM"= 1414 "pm"`