A metal crystallises in a bcc lattice. Its unit cell edge length is .about 300 pm and its molar mass is about 50 g mol-1 . what would be the density of the metal (in g cm-3) ?

Given,Molar mass, M = 50 g/ mol, NA = 6.02 x 1023                     Z = 2 (for bcc lattice)Edge length, a = 300 pm = 3 x 10-8 cm                        d=ZMNAa3                      =2×506.02×1023×3×10-83=6.2 g cm-3