JEE Main & Advanced Sample Paper JEE Main Sample Paper-19

  • question_answer The energy levels for \[_{Z}{{A}^{(+Z-1)}}\] can be given by

    A)  \[{{E}_{n}}\] for \[{{A}^{(+Z-)}}={{Z}^{2}}\times {{E}_{n}}\] for H

    B)  \[{{E}_{n}}\] for \[{{A}^{(+Z-1)}}=Z\times {{E}_{n}}\] for H

    C)  \[{{E}_{n}}\] for \[{{A}^{(+Z-1)}}=\frac{1}{{{Z}^{2}}}\times {{E}_{n}}\] for H

    D)  \[{{E}_{n}}\] for \[{{A}^{(+Z-1)}}=\frac{1}{Z}\times {{E}_{n}}\] for H

    Correct Answer: A

    Solution :

     \[{{E}_{He+}}={{E}_{H}}\times {{2}^{2}};{{E}_{Li}}^{2+}={{E}_{H}}\times {{3}^{2}}.......\]up to Z

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