Which of the following is correct for a two-d | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) In $2D$ square packing,the coordination number is $4$ and the packing fraction is $\frac{\pi}{4} \approx 0.785$. In $2D$ hexagonal packing,the coo

Vedclass · Accepted Answer

In hexagonal close packing,each atom is surrounded by six trigonal planar voids.

Vedclass · Answer

(D) In $2D$ square packing,the coordination number is $4$ and the packing fraction is $\frac{\pi}{4} \approx 0.785$. In $2D$ hexagonal packing,the coordination number is $6$ and the packing fraction is $\frac{\pi}{2\sqrt{3}} \approx 0.906$. Since the packing fraction of hexagonal packing $(0.906)$ is higher than square packing $(0.785)$,the void fraction $(1 - 	ext{packing fraction})$ of hexagonal packing is lower than that of square packing. In $2D$ hexagonal close packing,each atom is in contact with $6$ other atoms,creating $6$ trigonal planar voids around it.

Which of the following is correct for a two-dimensional closed-packed crystal?

Similar Questions

In a hexagonal close-packed $(HCP)$ structure,the third layer covers the ........ holes created between the first and second layers.

What type of crystal structure from the following has $52.36 \%$ packing efficiency?

If the anions $(A)$ form hexagonal closest packing and cations $(C)$ occupy only $2/3$ of the octahedral voids in it,then the general formula of the compound would be

Percentages of free space in cubic close packed structure and in body centered packed structure are respectively

Which arrangement is most suitable for the uniform packing of atoms in a layer?

Vedclass Test Series

Exam Paper Generator

Online Exam Module