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
    Which of the following is true for isotopes? (a) They have same mass number (b) They have same number of protons (c) They have same number of neutrons (d) Both (a) and (b)

    Answer:

    Isotopes are the atoms of same element with same no. of protons and different number of nucleons. 


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