Home
Class 12
CHEMISTRY
In an atomic bcc, what fraction of edge ...

In an atomic bcc, what fraction of edge is not covered by atoms ? 

A

`0.32`

B

`0.16`

C

`0.134`

D

`0.268`

Text Solution

Verified by Experts

The correct Answer is:
C
In an atomic BCC the atoms are in contact in the body diagonal
`therefore 4r = sqrt(3)a` only 2r along edge `2r = sqrt(3a)/2 = (1.732 a)/2 = 0.866 a`
The fraction of edge not curved by atoms `1- 0.866a = 0.134 a`
Promotional Banner

Topper's Solved these Questions

  • SOLID STATE

    AAKASH SERIES|Exercise PRACTICE SHEET - 3|30 Videos

  • SOLID STATE

    AAKASH SERIES|Exercise PRACTICE SHEET - 4|30 Videos

  • SOLID STATE

    AAKASH SERIES|Exercise PRACTICE SHEET - 1|30 Videos

  • REVISION EXERCISE

    AAKASH SERIES|Exercise COMPLEX COMPOUNDS|47 Videos

  • SOLIDS STATE

    AAKASH SERIES|Exercise PRACTICE EXERCISE|63 Videos

Similar Questions

Explore conceptually related problems

For the velocity time graph shown in figure below the distance covered by the body in last two seconds of its motion is what fraction of the total distance covered by it in all the total distance covered by it in all the seven seconds

A diatomic molecule has a dipole moment 1.2D. If the internuclear distance is 1A^@ , what is the fraction of charge exists on each atom?

In a cubic arrangement of A and B atoms, A atoms are at corners of unit cell and B atoms at edge centres. One "A" atom is missing from one corner in each unit cell. The simplest formula of the compound is

A Copper atom has 29 electrons revolving around the nucleus. A copper ball contains 4 xx 10^(23) atoms. What fraction of the electrons be removed to give the ball a charge of +9.6 mu C ?

A given metal crystallises out with a cubic structure having edge length of 360 pm. If there are four metal atoms in one unit cell, what is the radius of one atom ?

What is the position of electron in an atom?

What is that holding them together in atoms?

AAKASH SERIES-SOLID STATE-PRACTICE SHEET - 2
  1. AgI crystallises in the cubic close-packed zinc blend structure. Assum...

    Text Solution

    |

  2. For which of the following crystals would you expect the assumption of...

    Text Solution

    |

  3. In an atomic bcc, what fraction of edge is not covered by atoms ?

    Text Solution

    |

  4. The packing efficiency of a simple cubic crystal with an interstitial ...

    Text Solution

    |

  5. If all the atoms, on the shaded plane are removed then the molecular f...

    Text Solution

    |

  6. The formula of an oxide of iron is Fe(0.93)O(1.00).  If the compound h...

    Text Solution

    |

  7. In a planar tetraatomic molecule, AB(3), A is at the centroid of the e...

    Text Solution

    |

  8. The distance between the two tetrahedral voids (along the body diagona...

    Text Solution

    |

  9. How many unit cell are present in 4.0 gm of crystal AB (formula mass o...

    Text Solution

    |

  10. Which of the following statement(s) is (are) correct for CaF(2),

    Text Solution

    |

  11. Which of the following informations are correct about CsCl?

    Text Solution

    |

  12. Select the correct statements

    Text Solution

    |

  13. Which of the follwing expression is correct for packing fraction of Na...

    Text Solution

    |

  14. Ferrous oxide has a cubic structure and eged length of the unit cell i...

    Text Solution

    |

  15. Cdo has NaCl structure with density 8.27 g/cc. If the ionic radius of ...

    Text Solution

    |

  16. O^(-2): "CCP" B^(3+) : "Half of octahedral Voids" A^(2+) : 1//8^("...

    Text Solution

    |

  17. O^(-2): "CCP" B^(3+) : "Half of octahedral Voids" A^(2+) : 1//8^("...

    Text Solution

    |

  18. O^(-2): "CCP" B^(3+) : "Half of octahedral Voids" A^(2+) : 1//8^("...

    Text Solution

    |

  19. Density of a unit cell is represented as rho=("Effectiveno.ofatom(s)...

    Text Solution

    |

  20. Density of a unit cell is represented as rho=("Effectiveno.ofatom(s)...

    Text Solution

    |