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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Write the relationship between radius of atom and edge length of fcc unit cell.

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प्रश्न

Write the relationship between radius of atom and edge length of fcc unit cell.

एका वाक्यात उत्तर
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उत्तर

For fcc unit cell, radius of atom (r) = `(sqrt2a)/4`

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Cubic System
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पाठ 1: Solid State - Very short answer questions

संबंधित प्रश्‍न

Give the percentage of empty space in bcc lattice.


If the total volume of a simple cubic unit cell is 6.817 × 10-23 cm3, what is the volume occupied by particles in the unit cell?


Find the number of atoms in the fcc unit cell.


Calculate the number of unit cells in 0.3 g of a species having density of 8.5 g/cm3 and unit cell edge length 3.25 × 10-8 cm.


Derive the relationship between density of substance, its molar mass, and the unit cell edge length. Explain how you will calculate the number of particles, and a number of unit cells in x g of metal.


Silver crystallises in fcc structure, if edge length of unit cell is 316.5 pm. What is the radius of silver atom?


An element crystallizes in fcc type of unit cell. The volume of one unit cell is 24.99 × 10-24 cm3 and density of the element 7.2 g cm-3, Calculate the number of unit cells in 36 g of pure sample of element?


What is the percentage of unoccupied space in fcc unit cell?


An element (atomic mass M g/mol) having bcc structure has unit cell edge 400 pm. The density of the element is ____________ g/cm3.

[NA = 6.0 × 1023 atom mol−1)


How many total constituent particles are present in simple cubic unit cell?


The percentage of unoccupied volume in simple cubic cell is ______.


The number of atoms in 500 g of a fcc crystal of a metal with density d = 10 g/cm3 and cell edge 100 pm, is equal to ____________.


A metallic element has a cubic lattice with edge length of unit cell 2 Å. Calculate the number of unit cells in 200 g of the metal, if density of metal is 2.5 g cm-3?


The coordination number of atoms in body-centred cubic structure (bcc) is ______.


Gold crystallises into face-centred cubic cells. The edge length of a unit cell is 4.08 × 10–8 cm. Calculate the density of gold. [Molar mass of gold = 197 g mol–1]


In face centred cubic unit cell, what is the volume occupied?


Calculate the density of metal with molar mass 56 g mol- 1 that crystallises to form a bcc structure with edge length 288 pm.


At room temperature, polonium Crystallises in a primitive cubic unit cell. If a = 3.36 Å. Calculate the theoretical density of polonium. [It's atomic weight is 209 g/mol.]


Silver crystallizes in the fcc structure. If the edge length of the unit cell is 400 pm, calculate the density of silver (Atomic mass of Ag = 108).


What is base centred (or end-centred) unit cell?


The correct sequence of the atomic layers in cubic close packing is ______.


The number of particles present in Face Centred Cubic Unit cell is/are ______.


Which of the following metals exhibits minimum packing efficiency in its cubic system?


The cubic unit cell of a metal (molar mass = 63.55g mol−1) has an edge length of 362 pm. Its density is 8.92g cm−3.

The type of unit cell is ______.


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