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Explain how much portin of an atom locat...

Explain how much portin of an atom located at (a) corner and (b) body centre of a cubic unit cell is part of its neighouring unit cell.

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(i) An atom located at the corner is shared by eight unit cells. Therefore, its contribution to a particular unit cell is `1//8`.
(ii) An atom located at the body of the unit cell is not shared by any unit cell. It belongs to one particular unit cell only.
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DINESH PUBLICATION-SOLID STATE-N.C.E.R.T
  1. Name the parameters that characterized a unit cell.

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  2. Distinguish between a. Hexagonal and monoclinic unit cells (b) Fac...

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  3. Explain how much portin of an atom located at (a) corner and (b) body ...

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  4. What is the two-dimensional coordination number of a molecule in squar...

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  5. A compound is formed hexagonal close-packed structure. What is the tot...

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  6. A compound formed by two elements M and N. Element N forms ccp and ato...

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  7. Which of the following lattices has the highest packing efficency (a) ...

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  8. An element with molar mass 2.7 xx 10^(2) kg mol^(-1) forms a 2.7 xx 10...

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  9. What type of defect can arise when a solid is heated? Which physica...

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  10. What type of stoichiometric defect is shown by: (a) ZnS (b) AgBr

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  11. Explain how vacancies are introduced in an ionic solid when a cation ...

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  12. Ionic solids, which have anioninc vacancies due to metal excess defect...

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  13. A group-14 element is to be converted into n-type semiconductor by dop...

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  14. What type of substances would make better permanent magnets, ferromagn...

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  15. Define the term "amorphous". Give a few example of amorphous solids.

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  16. What makes a glass different from a solid such as quartz? Under what c...

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  17. Classify each of the following solids as ionic, metallic, molecular, n...

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  18. What is meant by the term "coordination number"? b. What is the coor...

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  19. How can you determine the atoic mass of an unknown metal if you know i...

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  20. a. "Stability of a crystal is reflected is reflected in the magnitude ...

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