JEE Main & Advanced Chemistry Structure of Atom Question Bank Quantum number, Electronic configuration and Shape of orbitals

  • question_answer For \[n=3\] energy level, the number of possible orbitals (all kinds) are  [BHU 1981; CPMT 1985; MP PMT 1995]

    A)                 1             

    B)                 3

    C)                 4             

    D)                 9

    Correct Answer: D

    Solution :

               When \[n=3\] shell, the orbitals are \[{{n}^{2}}={{3}^{2}}=9\] .                    No. of electrons \[=2{{n}^{2}}\]                 Hence no. of orbital \[=\frac{2{{n}^{2}}}{2}={{n}^{2}}\].

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