Home
Class 12
CHEMISTRY
Why are the elements of Group - 18 known...

Why are the elements of Group - 18 known as noble gases?

Text Solution

Verified by Experts

They have completely filled orbitals so they react with a few elements only under certain condition. So they are called noble gases.
Promotional Banner

Topper's Solved these Questions

  • P - BLOCK ELEMENTS

    OSWAAL PUBLICATION|Exercise TOPIC - 4 (GROUP - 18 ELEMENTS, THEIR PROPERTIES AND SOME IMPORTANT COMPOUNDS)(SHORT ANSWER TYPE QUESTIONS)|7 Videos

  • P - BLOCK ELEMENTS

    OSWAAL PUBLICATION|Exercise TOPIC - 4 (GROUP - 18 ELEMENTS, THEIR PROPERTIES AND SOME IMPORTANT COMPOUNDS)(LONG ANSWER TYPE QUESTIONS - I)|3 Videos

  • P - BLOCK ELEMENTS

    OSWAAL PUBLICATION|Exercise TOPIC - 3 (GROUP - 17 ELEMENTS, THEIR PROPERTIES AND SOME IMPORTANT COMPOUNDS)(LONG ANSWER TYPE QUESTIONS - I)|14 Videos

  • ORGANIC COMPOUNDS CONTAINING NITROGEN

    OSWAAL PUBLICATION|Exercise CYANIDES , ISOCYANIDES AND DIAZONIUM SALTS PREPARATION , PHYSICAL AND CHEMICAL PROPERTIES USES ( Long Answer Type Questions-II )|3 Videos

  • POLYMERS

    OSWAAL PUBLICATION|Exercise LONG ANSWER TYPE QUESTIONS - II|2 Videos

Similar Questions

Explore conceptually related problems

The elements of group 13 to 18 of the periodic table are known as

The valency of any element of group 18 is

Give common names of noble gases.

Why are transition elements knows as d-block elements ?

Based on the group valency of elements state the formula for the following giving justification for each : (i) Oxides of 1^(st) group elements, (ii) Halides of the elements of group 13, and (iii) Compounds formed when an element of group 2 combines with, an element of group 16.

Based on the group valency of elements state the formula for the following giving justification for each: i] Oxides of Ist group elements, ii] Halides of the elements of group 13, and iii] Compounds formed when an element of group 2 combines with elements of group 16 .

Ionisation enthalpy decreases down the group in noble gases. Why ?

Account for the following: Elements of group 18 are zerovalent.

OSWAAL PUBLICATION-P - BLOCK ELEMENTS-TOPIC - 4 (GROUP - 18 ELEMENTS, THEIR PROPERTIES AND SOME IMPORTANT COMPOUNDS)(VERY SHORT ANSWER TYPE QUESTIONS)
  1. What prompted Bartlett to the discovery of noble gas compounds.

    Text Solution

    |

  2. Noble gases have very high ionisation enthalpy. Why ?

    Text Solution

    |

  3. Ionisation enthalpy decreases down the group in noble gases. Why ?

    Text Solution

    |

  4. How does atomic radii changes in group - 18 elements ?

    Text Solution

    |

  5. Noble gases have large positive values of electron gain enthalpy. Why ...

    Text Solution

    |

  6. Name the first noble gas compound prepared by Neil Bartlett?

    Text Solution

    |

  7. Give common names of noble gases.

    Text Solution

    |

  8. How is XePtF(6) prepared ?

    Text Solution

    |

  9. How is radon obtained ?

    Text Solution

    |

  10. What is the percentage of noble gases in the atmospheric air ?

    Text Solution

    |

  11. Which noble gas in most abundant in atmospheric dry air?

    Text Solution

    |

  12. Why noble gases are called rare gases ?

    Text Solution

    |

  13. Why are the elements of Group - 18 known as noble gases?

    Text Solution

    |

  14. Why the noble gases are called inert gases ?

    Text Solution

    |

  15. Write the general electronic configuration of noble gases.

    Text Solution

    |

  16. Draw the structure of XeF(2) molecule.

    Text Solution

    |

  17. What inspired N. Bartlett for carrying out reaction between Xe and PtF...

    Text Solution

    |

  18. Helium is used in diving equipment.

    Text Solution

    |

  19. Draw the molecular structure of XeF(6).

    Text Solution

    |

  20. Complete the following chemical equation - XeF(4)+SbF(5)rarr

    Text Solution

    |