Question

X-ray diffraction studies shows that copper forms a fcc lattice and its edge length​

Answer 1

Your answer is as follows :-

n FCC Lattice, number of atoms/unit cell =4

∴   M=  (dN  A  a  ^3 )/Z

= 4 8.92×6.023×10  23   ×(3.608×10  −8  )   3  

​  

 ∴   Atomic mass of Cu=63.1 g/mol

HOPE THIS HELPS