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The packing fraction for a body centred ...

The packing fraction for a body centred cube is

A

0.42

B

0.54

C

0.68

D

0.74

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An example of body centred cube is

Fill ups The packing fraction of a simple unit cell is……………….. .

packing fraction of a unit cell is drfined as the fraction of the total volume of the unit cell occupied by the atom(s). P.E=("Volume of the atoms(s) present in a unit cell")/("Volume of unit cell")=(Zxx(4)/(3)pir^(3))/(a^(3)) and % of empty space = 100- P.F.xx100 where Z= effective number of stoms in s cube . r= radius of a an atoms a = edge lenght of the cube Packing fraction in face centered cubic unit cell is :

The packing fraction of a simple cubic crystal with an interstitial atom exactly fitting at the body center is :

What is meant by the term coordination numbr? in a body centred cubic structure.

Packing fraction of an identical solid sphere is 74% in :

Calculate the efficiency of packing in case of a metal crystal for body centred cubic lattice.

packing fraction of a unit cell is drfined as the fraction of the total volume of the unit cell occupied by the atom(s). P.E=("Volume of the atoms(s) present in a unit cell")/("Volume of unit cell")=(Zxx(4)/(3)pir^(3))/(a^(3)) and % of empty space = 100- P.F.xx100 where Z= effective number of atoms in s cube . r= radius of a an atoms a = edge length of the cube % of empty space in body centered cubic cell unit is nearly :

The fraction of volume occupied by atoms in a body centered cubic unit cell is:

The percentage of empty space in a body centre cubic arrangement is

MODERN PUBLICATION-SOLID STATE-EXERCISE
  1. Fe(3)O(4) is ferrimagnetic at room temperature but at 850K it becomes:...

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  2. An example of body centred cube is

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  3. The packing fraction for a body centred cube is

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  4. In the body centered cubic unit cell and simple unit cell, the radius...

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  5. In the spinel structur, oxides ions are cubical-closet packed whereas ...

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  6. The most unsysmmetrical and symmeterical systems are, respectively:

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  7. The unit cell with parameter alpha=beta=gamma=90^(@) and a=b ne c is

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  8. The number of atoms present in a hexagonal close-packed unit cell is:

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  9. In corrundum, oxide ions are arranged in hcp arrangement and the alumi...

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  10. A minetal of titanium is found to contain calcium ions at the corners,...

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  11. The number of tetrahedral and octahedral holes in a hexagonal primitiv...

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  12. In an atomic bcc lattie what fraction of edge is not covered by atom...

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  13. A Metal crystallizes in fcc lattice and the edge of the unit cell is 6...

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  14. In which of the following structures, the anion has maximum coordinati...

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  15. In a face centered cubic arrangement of A and B atoms whose A atoms ar...

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  16. In which of the following pair, both the crystals are not of the same ...

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  17. Which of the following statements is not true about crystalline solids...

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  18. What is the ratio by mass of Na and Cl in sodium chloride (NaCl) ?

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  19. The crystal system of a compound with unit cell dimensions alpha=0.387...

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  20. If three elements P, Q and R crystalline in a cubic solid lattice with...

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