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  5. Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति

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 elements with atomic number 10, 18, 36, 54 and 86 are all [CPMT 1976]

    A) Light metals

    B) Inert gases

    C) Halogens

    D) Rare-earths

    Correct Answer: B

    Solution :

      Inert gases, these have \[n{{s}^{2}}n{{p}^{6}}\] configuration.


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