2. Questions Bank
  3. 9th Class
  4. Science
  5. Atoms and Molecules

9th Class Science Atoms and Molecules Question Bank Atoms and Molecules

  • question_answer
    An atom contains 14 protons and 16 neutrons. What is its mass number?

    A) 14                                

    B) 16

    C) 30                    

    D)        2

    E) None of these

    Correct Answer: C

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