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

  • question_answer
    Which of the following statements about the isotopes of an element is NOT correct?

    A)  Isotopes have the same proton number.

    B)  Isotopes have the same chemical properties.

    C)  Isotopes have the same nucleon number.  

    D)  Atoms of the isotopes of the element have the same number of electrons.

    Correct Answer: C

    Solution :

     Mass number of isotopes is different as they have different number of nucleons or neutrons.


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