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

  • question_answer
    Which of the following are present in an atom with atomic number \[82\] and mass number\[208\]?

    A)  \[82\] protons and \[82\] electrons

    B)  \[82\]protons and \[126\] neutrons

    C)  \[82\]protons, \[82\] electrons and \[126\] neutrons  

    D)  \[82\]neutrons, \[126\] protons and \[126\] electrons

    Correct Answer: C

    Solution :

     No. of protons \[=\] no. of electrons \[=82\] and number of neutrons \[=\] Mass number \[-\] Atomic number\[=208-82=126\].


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