2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-4

  • question_answer
    As per Bohr model, the minimum energy \[(1\,ne\,V)\]required to remove an electron from the ground state of double ionized \[Li\] and \[(Z=3)\] is

    A)  \[1.51\]                       

    B)  \[13.6\]

    C)  \[40.8\]                       

    D)  \[122.4\]

    Correct Answer: D

    Solution :

    As       \[E=-{{Z}^{2}}\times 13.6\,eV\] \[=-9\times 13.6\,eV\] \[=-122.4eV\]     \[(\therefore \,\,Z=3)\] So, lionization energy \[=+122.4eV\]


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