JEE Main & Advanced AIEEE Solved Paper-2011

  • question_answer
    The outer electron configuration of Gd (Atomic No.: 64) is   AIEEE  Solved  Paper-2011

    A) \[4{{f}^{7}}5{{d}^{1}}6{{s}^{2}}\]                 

    B) \[4{{f}^{3}}5{{d}^{5}}6{{s}^{2}}\]

    C) \[4{{f}^{8}}5{{d}^{0}}6{{s}^{2}}\]                 

    D) \[4{{f}^{4}}5{{d}^{4}}6{{s}^{2}}\]

    Correct Answer: A

    Solution :

                              Gd\[=4{{f}^{7}}5{{d}^{1}}6{{s}^{2}}\]


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