Question

In a simple cubic lattice, the coordination number is $x$ and the packing efficiency of BCC is $y\%$. Then the value of $\frac{y}{x}$ is: (Give your answer upto two decimal only)

Answer 1

In a simple cubic lattice, the coordination number is $6$ and the packing efficiency of BCC is $68\%$. Hence, the value of $x=6$ and $y=68$.
$\therefore \frac{x}{y}=\frac{68}{6}=11.33$