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Identical spheres are undergoing two-dim...

Identical spheres are undergoing two-dimensinal packing in squre close packing and hexagonal close packing. Which is correct regarding the spheres?

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DINESH PUBLICATION-SOLID STATE-ASSIGNMENT
  1. How manu atoms are present in the unit cell of : (i) Simple cubic ...

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  2. Define term space lattice ?

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  3. Identical spheres are undergoing two-dimensinal packing in squre close...

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  4. What is the co-ordination number of each sphere in cubic close packing...

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  5. What are voids or interstitial sites ?

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  6. How many voids per point are present in cubic close packed structures ...

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  7. How many octahedral tetrahedral voids are per sphere in a unit cell ?

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  8. Name the three of crystalline solids having the formula AB.

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  9. What are the coordination number of Zn^(2+) and S^(2-) ions in ZnS?

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  10. An element occurs in bcc structure. How many atoms are present in its ...

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  11. The unit cell of a substance has cations A^(+) at the corners of the u...

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  12. What is the co-ordination number of each sphere in (i) Hexagonal clo...

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  13. Knowing the edge length of a cubic crystal of an element and its. Dens...

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  14. What are interstitial sites ? Discuss tetrahedral and octahedral sites...

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  15. The number of atoms present per unit cell in simple, fcc and bcc are …...

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  16. In NaCl crystal the Cl^(-) ions are in f.c.c. arrangement. Calculate t...

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  17. What is the maximum number of atoms in a hcp crystal structure of an e...

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  18. How many atoms can be assigned to its unit cell if an element forms (i...

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  19. Distinguish between crystal lattice and unit cell.

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  20. How is simple cubic unit cell formed ? Calculate the number of atoms i...

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