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The smallest repeating pattern which whe...

The smallest repeating pattern which when repeated in three dimensions results in the crystal of the substance is called

A

space lattice

B

crystal lattice

C

unit cell

D

coordination number

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The correct Answer is:
C
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The regular three dimensional arrangement of points in a crystal is known as crystal lattice and the smallest repeating pattern in the lattice is called unit cell. The unit cells are characterised by the edge lengths a, b, c and the angles between them alpha, beta and gamma respectively. Based on this, there are seven crystal systems. In a cubic unit cell: a=b=c and alpha = beta=gamma=90^(@) The number of points in simple, body centred and face centred cubic cells are 1,2 and 4 respectively In both the hcp and ccp of spheres, the number of tetrahedral voids per sphere is two while the octahedral voids is one. A double triangular void surrounded by three spheres above and three spheres below is called

The regular three dimensional arrangement of points in a crystal is known as crystal lattice and the smallest repeating pattern in the lattice is called unit cell. The unit cells are characterised by the edge lengths a, b, c and the angles between them alpha, beta and gamma respectively. Based on this, there are seven crystal systems. In a cubic unit cell: a=b=c and alpha = beta=gamma=90^(@) The number of points in simple, body centred and face centred cubic cells are 1,2 and 4 respectively In both the hcp and ccp of spheres, the number of tetrahedral voids per sphere is two while the octahedral voids is one. The C.N of cation occuppying an octahedral vois is:

The regular three dimensional arrangement of points in a crystal is known as crystal lattice and the smallest repeating pattern in the lattice is called unit cell. The unit cells are characterised by the edge lengths a, b, c and the angles between them alpha, beta and gamma respectively. Based on this, there are seven crystal systems. In a cubic unit cell: a=b=c and alpha = beta=gamma=90^(@) The number of points in simple, body centred and face centred cubic cells are 1,2 and 4 respectively In both the hcp and ccp of spheres, the number of tetrahedral voids per sphere is two while the octahedral voids is one. In a face centred cubic cell, an atom at the face contributes to the unit cell

The smallest portion of a crystal which has the structural characteristics of the space lattice is called the __________

In Roman numeration, a symbol is not repeated more than three times.

The smallest portion of a space lattice which can generate the crystal by repeating its dimensions is _______

RESONANCE-SOLID STATE-Part-II : Only one option correct type
  1. Which of the following is/are pseudo solids? (P) KCl (Q) Barium chl...

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  2. The smallest repeating pattern which when repeated in three dimensions...

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  3. The crystal system for which a!= b!= c and alpha = beta = gamma = 90^(...

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  4. Which of the following are the correct axial distance and axial angles...

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  5. Choose the correct statements

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  6. The crystal system of a compound with unit cell dimensions a=0.387,b=0...

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  7. Body centred cubic lattice has co-ordination number of

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  8. Iron crystallises in a body centred cubic structure. Calculate the rad...

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  9. A metal crystallize in a body centered cubic lattice (bcc) with the ed...

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  10. At room temperature, Polonium cryatsillises in Cubic primitive cell. I...

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  11. Lithium crystallizes in a body centred cubic lattice. How many next-ne...

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  12. Consider a Body Centred Cube (BCC) arrangement, let d(e), d(fd), d(bd)...

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  13. How many number of atoms are completely inside the HCP unit cell ?

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  14. The shortest distance between I^(st) and V^(th) layer of HCP arrangeme...

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  15. Volume of HCP unit cell is:

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  16. Fraction of empty space in ABAB type arrangement in 3D

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  17. What is the hight of an HCP unit cell ?

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  18. What is the number of atoms in a unit cell of face-centred cubic cryst...

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  19. Which of the following shaded plane in fcc lattice contains arrangeme...

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  20. Copper crystallises in a structure of face centerd cubic unit cell. Th...

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