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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 Conceptive Subjective Problems

  • question_answer
    The mass number of an element is 23 and atomic number is 11. Find the number of protons, electrons and neutrons respectively present in the atom.

    Answer:

    Mass number\[(A)=23\] Atomic number\[(Z)=11\] No. of protons = No. of electrons\[=Z=11\] No. of neutrons\[(n)=AZ=23-11=12\]


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