9th Class Science Structure of the Atom Question Bank Structure of Atoms

  • question_answer
    Electron promotion rule is related to

    A) \[2s\to 2p\]               

    B)         \[2s\to 3s\]

    C)  \[2s\to 3p\]            

    D)  \[1s\to 2s\]

    Correct Answer: A

    Solution :

    Not Available


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