Single Choice

The total number of tetrahedral voids in face centered unit cell is ______.

A6
B8
Correct Answer
C10
D12

Solution

In face centered cubic unit cell (FCC), tetrahedral voids are present on body diagonals. There are two tetrahedral voids on each body diagonal at $$\left (\cfrac 14 \right)^{th}$$ of the distance from each corner.

So, total number of tetrahedral voids = (no. of tetrahedral voids per body diagonal) x (no. of body diagonals) = $$2 \times 4 = 8$$

Hence, Option "B" is the correct answer.

SIMILAR QUESTIONS

Solid State

In a multi layered close-packed structure :

Solid State

The interstitial hole is called tetrahedral because :

Solid State

The interstital hole is called tetrahedral because ?

Solid State

The total number of tetrahedral voids in face centered unit cell is ______.

Solid State

Sodium oxide as anti-fluorite structure. The percentage of the tetrahedral voids occupied by the sodium ions is

Solid State

In which of the following crystals, alternate tetrahedral voids are occupied?

Solid State

Which of the following will not change the density of solid $$SiC$$?

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