Question

Copper crystallises into fcc structure and the unit cell has length of edge 3.61×10-8cm calculate copper density atomic mass of is 63.5gmol-1

Answer 1

Density = Z×M/N×a3.

= 4×63.5/ 6.023×10^23×(3.61×10^-8)^3.

d = 0.8965× 10^7