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JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Atomic number, Mass number Atomic species

  • question_answer
    The hydride ions \[({{H}^{-}})\] are isoelectronic with [AFMC 1995; Bihar MEE 1997]

    A)                 \[Li\]     

    B)                 \[H{{e}^{+}}\]

    C)                 \[He\]  

    D)                 \[Be\]

    Correct Answer: C

    Solution :

                    \[{{H}^{-}}=1{{s}^{2}}\] and \[H{{e}^{+}}=1{{s}^{2}}.\]


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