2. Questions Bank
  3. JEE Main & Advanced
  4. Chemistry
  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 Mock Test - Classification Elements Periodicity Properties

  • question_answer
    Which one of the following is expected to have largest size?

    A) \[{{F}^{-}}\]              

    B) \[{{O}^{-2}}\]

    C) \[A{{I}^{+3}}\]                     

    D) \[{{N}^{-3}}\]

    Correct Answer: D

    Solution :

    [d] Due to having three electrons atomic size increases. \[{{F}^{-}}=9+1=10\]electrons;\[{{O}^{-2}}=8+2=10\]electrons \[A{{I}^{+3}}=13-3=10\] electrons; \[{{N}^{3-}}=7+3=10{{e}^{-}}\] Because electrostatic force between nucleus and \[{{e}^{-}}\]cloud is least innitrogen.


You need to login to perform this action.
You will be redirected in 3 sec spinner