JEE Main & Advanced Chemistry Hydrogen & Its Compounds Question Bank Hydrogen

  • question_answer Hydrogen ion \[{{H}^{-}}\] is isoelectronic with

    A) Li

    B) He

    C) \[{{H}^{+}}\]

    D) \[L{{i}^{-}}\]

    Correct Answer: B

    Solution :

    \[{{H}^{-}}=1{{s}^{2}};\ He=1{{s}^{2}}\]


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