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A substance 'A' crystallizes in fcc latt...

A substance 'A' crystallizes in fcc lattice.
Calculate the number of atoms present per unit cell of 'A'.

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Density of a unit cell is the same as the density of the substance. So, if the density of the substance is known, we can calculate the number of atoms or dimensions of the unit cell. The density of the unit cell is related to its formula mass (M), number of atoms per unit cell (z), edge length (a in cm), and Avogadro's constant N_(A) , as rho=(zxxM)/(a^(3)xxN_(A)) Q. An element X crystallizes in a structure having an fcc unit cell of an edge 100 pm. if 24 g of the element contains 24xx10^(23) atoms, the density is

MAXIMUM PUBLICATION-THE SOLID STATE-EXAMPLE
  1. Which are the two types of close packing in two dimension. What are it...

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  2. Classify the following solids as ionic, metallic, molecular, network (...

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  3. A substance 'A' crystallizes in fcc lattice. Calculate the number of...

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  4. A substance 'A' crystallizes in fcc lattice. In a crystalline solid A...

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  5. What is meant by the term coordination number?

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  6. What is the coordination number of atoms: i) in a cubic close-packed ...

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  7. Identify the crystal Write the name of the crystal.

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  8. Identify the crystal How many particles are present in the unit cel...

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  9. Identify the crystal Write the relation connecting edge length and r...

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  10. The following diagram shows the alignment of magnetic moments for some...

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  11. Examine the substances H2O, NaCl, C6H6 and name the magnetic property ...

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  12. How many lattice points are there in one unit cell of the following la...

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  13. How many lattice points are there in one unit cell of the following la...

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  14. How many lattice points are there in one unit cell of the following la...

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  15. Classify the following into crystalline and amorphous solids. NaCl ,G...

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  16. Write any two properties of graphite.

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  17. Fill in the blanks.

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  18. NaCl shows mainly Schottky defect and AgCI shows Frenkel defect. Do yo...

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  19. Classify the following solids into isotropic and anisotropic. Polyvin...

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  20. The common salt, sodium chloride is an example for crystal system with...

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