Question

matter has a body-centered cubic unit cell with a length of 330 𝑝𝑚 along an edge

and a density of 8.57 𝑔 𝑐𝑚−3

. Calculate the atomic mass of the matter.

Answer 1

The atomic mass:

$$a^3=\frac{2M}{\rho N_A},\\\space\\ M=a^3\rho N_A/2=9.3·10^{-5}\text{ g/mol}.$$