JEE Main & Advanced Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank General Characteristics

  • question_answer
    Which of the following electronic configuration is that of a transitional element [NCERT 1983; CPMT 1989, 97; MP PET/PMT 1997; AIIMS 2000; MP PMT 2002]

    A) \[1{{s}^{2}},2{{s}^{2}}{{p}^{6}},3{{s}^{2}}{{p}^{6}}{{d}^{10}},4{{s}^{2}}{{p}^{6}}\]

    B) \[1{{s}^{2}},2{{s}^{2}}{{p}^{6}},3{{s}^{2}}{{p}^{6}}{{d}^{10}},4{{s}^{2}}{{p}^{1}}\]

    C) \[1{{s}^{2}},2{{s}^{2}}{{p}^{6}},3{{s}^{2}}{{p}^{6}}{{d}^{2}},4{{s}^{2}}\]

    D) \[1{{s}^{2}},2{{s}^{2}}{{p}^{6}},3{{s}^{2}}{{p}^{6}},4{{s}^{2}}\]

    Correct Answer: C

    Solution :

    \[1{{s}^{2}},\,2{{s}^{2}}{{p}^{6}},\,3{{s}^{2}}{{p}^{6}}{{d}^{2}},\,4{{s}^{2}}\].


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