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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
    Which set has the same number of unpaired electrons in their ground state [JIPMER 2000]

    A) \[C{{l}^{-}},F{{e}^{3+}},C{{r}^{3+}}\]

    B) \[N{{a}^{+}}\], \[M{{g}^{2+}}\], \[Al\]

    C) \[Na,\,P,\,\,Cl\]

    D) \[N,\,P,V\]

    Correct Answer: D

    Solution :

      \[N\] and \[P\] have 3 unpaired electrons in \[2p\]and \[3p\] respectively; \[V\] has 3 unpaired electrons in \[3d\].


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