A compound having bcc geometry has atomic mass 50. Calculate the density of the unit cell if its edge length is 290 pm.

Explanation

For bcc geometry , number of atoms per unit cell(z)=2, atomic mass(A)=50
Edge length (a) `=290 xx10^(-10)` cm
Density `(rho)`=?
`rho = (Z xx A)/(N_0 xx a^3) = (2 xx 50 )/(6.02 xx 10^23 xx (290 xx 10^(-10) )^3) `
` = 6.82 g//cm^3`