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

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    The number of radial nodes of 3s and 2p orbitals are respectively.            [IIT-JEE 2005]

    A)                 2, 0

    B)                 0, 2

    C)                 1, 2

    D)                 2, 1

    Correct Answer: A

    Solution :

               Number of radial nodes = (n - l - 1)                    For 3s: n = 3, l = 0                    (Number of radial node = 2)                    For 2p: n =2, l = 1                                 (Number of radial node = 0)


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