Text Solution

Verified by Experts

Alkali metals have lowest value of ionisation enthalpy in a period. On moving down the group from top to bottom, the ionisation enthalpy decreases. Hence from the graph, M has least ionisation enthalpy.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    MODERN PUBLICATION|Exercise COMPETITION FILE (OBJECTIVE TYPE QUESTIONS (C)) (MCQs with more than one correct answer)|8 Videos
  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    MODERN PUBLICATION|Exercise COMPETITION FILE (OBJECTIVE TYPE QUESTIONS (C)) (MCQs based on the given passage/compreshension)|11 Videos
  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    MODERN PUBLICATION|Exercise COMPETITION FILE (OBJECTIVE TYPE QUESTIONS (A)) (MCQs)|21 Videos
  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|13 Videos
  • ENVIRONMENTAL POLLUTION

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|15 Videos