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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Give the percentage of empty space in bcc lattice.

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प्रश्न

Give the percentage of empty space in bcc lattice.

एका वाक्यात उत्तर
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उत्तर

The percentage of empty space in bcc lattice is 32%.

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

संबंधित प्रश्‍न

Answer the following in brief.

Calculate the number of atoms in fcc unit cell.


Obtain the relationship between the density of a substance and the edge length of the unit cell.


An element with molar mass 27 g/mol forms a cubic unit cell with edge length of 405 p.m. If the density of the element is 2.7 g/cm3, what is the nature of the cubic unit cell?


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


Find the number of atoms in the fcc unit cell.


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 ____________.


Sodium crystallizes in bcc structure with radius 1.86 × 10−8 cm. What is the length of unit cell of sodium?


An element crystallizes bcc type of unit cell, the density and edge length of unit cell is 4 g cm−3 and 500 pm respectively. What is the atomic mass of an element?


Consider the following unit cell.

The number of particles (spheres) per unit cell is:


What is the density of iron crystal which crystallizes in body-centred cubic structure with edge length 287 pm? (At. mass of Fe = 56 amu)


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]


A metal has an fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g cm−3. The molar mass of the metal is ______.

(NA Avogadro's constant = 6.02 × 1023 mol−1)


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


What is the density of potassium, if it has a bcc structure with edge length 4Å?
(Atomic mass of K = 39)


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.]


An element crystallises in fee structure. If molar mass of element is 72.7 g mol -1, the mass of its one unit cell will be ______.


Calculate the molar mass of an element having density 2.8 g cm−3 and forms fcc unit cell.

[a3.NA = 38.5 cm3 mol−1]


Calculate the molar mass of an element having a density of 19.2 g cm−3 if it forms an fcc structure [a3 × NA = 40 cm3 mol−1].


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