2. Questions Bank
  3. 9th Class
  4. Science
  5. Structure of the Atom

9th Class Science Structure of the Atom Question Bank Atomic Structure Conceptive Subjective Problems

  • question_answer
    The isotopes have : (a) same mass number                  (b) same valency (c) same number of protons (d) same number of electrons

    Answer:

    As isotopes have same number of electrons in their valence shells, their valency remains same. Further, they have number of protons.


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