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  3. 9th Class
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  5. Structure of the Atom

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

  • question_answer
    Which of the following statements is false? Rewrite it correctly. (a) Mass of a neutron is more than mass of a proton. (b) There is no difference between atomic mass and mass number (c) Isobars differ in the number of neutrons as well as protons.

    Answer:

    (b) Atomic mass is different from mass number. Atomic mass is mass of all the constituents of an atom. Whereas mass number is the total number of nucleons.


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