JEE Main & Advanced Chemistry Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Question Bank Extended or long form of periodic table

  • question_answer
    The electronic configuration of halogen is  [MP PET/PMT 1998; Pb. PMT 2001]

    A) \[n{{s}^{2}}n{{p}^{6}}\]

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

    C) \[n{{s}^{2}}n{{p}^{5}}\]

    D) \[n{{s}^{2}}\]

    Correct Answer: C

    Solution :

    Halogens has 7 electrons in his valance shell \[(n{{s}^{2}}n{{p}^{5}})\].


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