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

9th Class Science Structure of the Atom Question Bank Atomic Structure IIT JEE Objective Problems

  • question_answer
    The number of electrons in the atom which has 20 protons in the nucleus is

    A)  20                         

    B)  10   

    C)  30                                         

    D)  40

    Correct Answer: A

    Solution :

      Not Available    


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