In which of the following is (are) the packing efficiency(ies) the lowest?
I.tungsten, bcc
II.titanium, hcp
III.nickel, fcc
IV.polonium, sc

Question

Quizplus · Accepted Answer

Polonium (Po) with a simple cubic (sc) structure has the lowest packing efficiency among the given options. In a simple cubic structure, atoms are only located at the corners of the cube, resulting in a packing efficiency of about 52%, which is lower than that of body-centered cubic (bcc), hexagonal close-packed (hcp), and face-centered cubic (fcc) structures.

In Which of the Following Is (Are) the Packing Efficiency(ies)