Home
Class 11
CHEMISTRY
Which of the elements show least values ...

Which of the elements show least values of ionisation enthalpy within their periods ?

A

Alkaline earth metals

B

Alkali metals

C

Noble gas

D

Chalcogens

Text Solution

Verified by Experts

The correct Answer is:
B
IE increases along the period. As alkali metals belong to group 1 these have larger size in a period and hence low I.E.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise COMPREHENSION|4 Videos

  • ENVIRONMENTAL CHEMISTRY

    DINESH PUBLICATION|Exercise Integer Type Questions|4 Videos

Similar Questions

Explore conceptually related problems

Which of the elements show least values of ionisation within their periods ?

The element with highest value of ionisation potential is

Which group of elements shows lowest ionisation enthalpy?

Which of the following is correct set of ionisation enthalpy ?

Which of the element is expected to have lowest first ionisation enthalpy

Which of the following has the highest first ionisation enthalpy ?

Which of the following is the correct order of ionisation enthalpy ?

The family of elements with the highest ionisation enthalpy :

Assertion : Alkali metals have least value of ionization energy within a period. Reason : They precede alkaline earth metals in periodic table.

DINESH PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-All Questions
  1. The first ionisation energy of Al is smaller than that of Mg because :

    Text Solution

    |

  2. The second ionisation potential is

    Text Solution

    |

  3. Which of the elements show least values of ionisation enthalpy within ...

    Text Solution

    |

  4. Which of the following isoelectronic ions have the lowest ionization e...

    Text Solution

    |

  5. Which of the following process requires the largest amount of energy ?

    Text Solution

    |

  6. From the ground state electronic configuration of the elements given ...

    Text Solution

    |

  7. The elements which occupy the peaks of ionisation energy curve are

    Text Solution

    |

  8. The power of an atom to attract the shared pair in a molecule:

    Text Solution

    |

  9. Which out of the following has the largest ionisation energy ?

    Text Solution

    |

  10. Which of the following has the largest ionisation energy.

    Text Solution

    |

  11. Which of the following statement concerning ionisation energy is not c...

    Text Solution

    |

  12. The pair in which the ionisation energy of first species is less than ...

    Text Solution

    |

  13. Arrange S, P and As in order of increasing ionisation energy.

    Text Solution

    |

  14. The first ionisation potential of calcium is greatyer than that of pot...

    Text Solution

    |

  15. The increasing order of ionisation energy among sulphur, phosphorous a...

    Text Solution

    |

  16. Which of the following does not affect the ionisation potential of the...

    Text Solution

    |

  17. Which of the following process refers to ionisation potential ?

    Text Solution

    |

  18. r("(van der Waal)") is

    Text Solution

    |

  19. The correct order of the size of C, N, P, S following the order:

    Text Solution

    |

  20. Which of the following has smallest size ?

    Text Solution

    |