Download the app

Questions  

The CORRECT statement(s) for cubic close packed (ccp) three dimensional structure is (are)

Unlock the full solution & master the concept.

Get a detailed solution and exclusive access to our masterclass to ensure you never miss a concept
By Expert Faculty of Sri Chaitanya
a
The number of the nearest neighbours of an atom present in the topmost layers is 12
b
The efficiency of atom packing is 74%
c
The number of octahedral and tetrahedral voids per atom are 1 and 2, respectively
d
The unit cell edge length is 22  times the radius of the atom

Ready to Test Your Skills?

Check Your Performance Today with our Free Mock Tests used by Toppers!

detailed solution

Correct option is B

Packing fraction = Vol.ofatom  Vol.of unit cell ×100=4×43πr3a3×100=4×43πr3(22r)3×100∣=74%


Similar Questions

Caesium atoms are the largest naturally occurring atoms. The radius of Cs atom is 2.6 Ao. The number of moles of Cs atoms to be laid side by side to give a row of Cs atoms 2.50 cm x × 10-17 . Find the value of x.

Get your all doubts cleared from
Sri Chaitanya experts

counselling
india
+91

whats app icon
phone icon