Calculate the radius of metal atom if it forms bec unit cell having edge length 530 pm.

Which from the following statements is NOT true regarding crystalline solid?

Find the void volume of bec unit cell in $\mathrm{cm}^3$ if volume of unit cell is $1.5 \times 10^{-22} \mathrm{~cm}^3$.

Calculate the volume of unit cell of an element having molar mass $63.5 \mathrm{~g} \mathrm{~mol}^{-1}$ that forms fcc structure $\left[\varrho \times \mathrm{N}_{\mathrm{A}}=5.5 \times 10^{24} \mathrm{~g} \mathrm{~cm}^{-3} \mathrm{~mol}^{-1}\right]$