JEE Main & Advanced Chemistry Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Question Bank Ionisation Energy

  • question_answer
    Which one of the following elements has the highest ionisation energy [IIT-JEE 1990]

    A) \[[Ne]\,3{{s}^{2}}\,3{{p}^{1}}\]

    B) \[[Ne]\,3{{s}^{2}}\,3{{p}^{2}}\]

    C) \[[Ne]\,3{{s}^{2}}\,3{{p}^{3}}\]

    D) \[[Ar]\,3{{d}^{10}}\,4{{s}^{2}}\,4{{p}^{2}}\]

    Correct Answer: C

    Solution :

    Since \[{{e}^{-}}\] is to be removed from exactly half filled p-orbital.


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