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In an FCC unit cell atoms are numbered a...

In an FCC unit cell atoms are numbered as shown below the atoms not touching each other are (3 is back face centred)

A

`3&4`

B

`1&3`

C

`1&2`

D

`2&4`

Text Solution

Verified by Experts

The correct Answer is:
C
The atoms at the face centre in FCC touches the 4 corners on that face, but the corners donot touch each other. The atoms at the centre of the faces at right angles touch each other so 1 & 2.
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AAKASH SERIES-SOLID STATE-LEVEL - II LECTURE SHEET (EXERCISE - I)
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  8. In a face centred cubic arrangement of A and B atoms whose A atoms are...

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  9. Which of the following statements are false:

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  10. Edge length of NaCl unit cell is 552 pm. Then which are correct statem...

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  19. An electron trapped in an anion vacancy within the crystal is called.....

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