Question

Find density in bcc if edge length is 420pm and mass is 23u

Answer 1

For BCC System, (Z) = 2

Edge Length (a) = 420pm = 4.2 × 10^-8cm

Mass (M) = 23u.

So, Density (p, rho) =>

p = (Z × M) / (a^3 × NA).......NA is Avogadro Constant.

= (2 × 23) / (4.2 × 10^-8)^3 × 6.022×10^23

= 46 / 4.2×4.2×4.2×6.022×10^-1

= 460 / 446.158

=> Density (p) = 1.031 g/cm^3.......●



Hope it was helpful.