( 4 points) Determine the atomic packing factor from your measurements for all your crystal systems by dividing the volume of atoms (ping-pong balls) in your unit cell by the total volume of the unit cell. What are the theoretical values? Which of your crystal structures is close-packed, which one is not? Avg-Radius: 0.7985in2 \begin{tabular}{|l|c|c|c|} \hline Avgr Radius: 0.7985in & \\ \hline Unit cell & latticeparamatera & luttice farmeterce & in3volume \\ \hlineFCC & 2.162in & 2.162in & 10.106 \\ \hlineBCC & 1.782in & 1.782in & 5.639 \\ \hlineHCP & 1.597in & 3.127in & 7.975 \\ \hline \end{tabular}