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
    An atom with atomic number 21 belongs to the category of [Kurukshetra CEE 1991]

    A) \[s\]-block elements

    B) \[p\]-block elements

    C) \[d\]-block elements

    D) \[f\]-block elements

    Correct Answer: C

    Solution :

      d-block - \[[Ar]\,3{{d}^{1}}4{{s}^{2}}\]


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