MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Relation Between r and a

The edge leng...

Question

The edge lengths of the unit cells in terms of the radius of sphere constituting fcc, bcc and simple cubic unit cells are respectively .......

(a) $2 \sqrt{2 r}, \frac{4 r}{\sqrt{3}}, 2 r$ (b) $\frac{4 r}{\sqrt{3}}, 2 \sqrt{2 r}, 2 r$

(c) $2 r, 2 \sqrt{2 r}, \frac{4 r}{\sqrt{3}}$ (d) $2 r, \frac{4 r}{\sqrt{3}}, 2 \sqrt{2 r}$

Open in App

Solution

Answer: (a) Edge length for different types of unit cells can be tabulated as

$\begin{matrix} T y p e s o f u n i t c e l l & E d g e l e n g t h f c c & 2 \sqrt{2 r} b c c & \frac{4}{\sqrt{3}} r s c c & 2 r \end{matrix}$

Suggest Corrections

thumbs-up

0

Similar questions

Q. The edge lengths of the unit cell in terms of the radius of spheres constituting fcc, bcc and simple cubic unit cell are respectively:

Q. Select the right expression for determining the Packing fraction (PF) of NaCl unit cell (assume an ideal crystal), if the ions along an edge diagonal are absent: (Where

r_{+}

represents the radius of the cation and

r_{-}

represents the radius of the anion)

Q. (2R,4S)-2,4-Dichloropentane and (2S,4R)-2,4-dichloropentane are:

(r_{1} - r) (r_{2} - r) (r_{3} - r) = 4 r^{2} R

Q. A right circular cylinder of radius 2r cm and height h cm (h = 4r) just encloses a sphere of diameter

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Relation Between r and a

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Relation Between r and a

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon