WB JEE Medical WB JEE Medical Solved Paper-2012

  • question_answer
    If the first ionization energy of H atom is 13.6 eV, then the second ionization energy of He atom is

    A)  27.2 eV

    B)  40.8 eV

    C)  54.4 eV

    D)  108.8 eV

    Correct Answer: C

    Solution :

     Second ionisation energy \[=13.6\times \frac{{{2}^{2}}}{{{1}^{2}}}\]\[=54.4\,eV\]


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