(Solved): White tin (Sn) is known to crystallize into a body-centered tetragonal cell shown below. In this c ...

White tin (Sn) is known to crystallize into a body-centered tetragonal cell shown below. In this cell, $$a=b=0.28\mathrm{nm}$$ and $$c=0.26\mathrm{nm}$$ (c is the dimension along the $$z$$ axis). Atoms are touching along the $$<111>$$ directions. The interaxial angles are all $$90^{?}$$. Calculate the Atomic Packing Factor. \begin{tabular}{|l|} \hline $$0.24$$ \\ \hline $$0.16$$ \\ \hline $$0.34$$ \\ \hline $$0.36$$ \\ \hline $$0.68$$ \\ \hline $$0.73$$ \\ \hline \end{tabular}