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AMU Medical AMU Solved Paper-2002

  • question_answer
    The quantum number which is responsible for the size of electron cloud is

    A)  spin                                      

    B)  azimuthal

    C)  principal                             

    D)  magnetic

    Correct Answer: C

    Solution :

                     Principal quantum number (n) determines the size and main energy level or shell. Azimuthal or angular quantum number \[(l)\] gives the sub-shell or sub-level and also determines the shape of the orbitals. Magnetic quantum number (m) refers to the different orientations of the orbitals in space. Spin quantum number (s) describes the spin orientation of the electron.


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