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

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

  • question_answer
    Why does atomic number not change during a chemical reaction?

    Answer:

    During a chemical reaction, it is the number of electrons that change. But atomic number is the number of protons. Hence atomic number does not change during a chemical reaction.


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