The Total solution for NCERT class 6-12
Gold (atomic radius =0.144 nm) crystallises in a face-centred unit cell. What is the length of aside of the cell?
For aface-centred unit cell:
It is given that theatomic radius, r = 0.144 nm
So,
= 0.407 nm
Hence, length of a sideof the cell = 0.407 nm