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9th Class Science Structure of the Atom Question Bank 9th CBSE Science Structure of the Atom

  • question_answer
      An ion M3- contains 10 electrons and 7 neutrons. What is the atomic number and mass number of the element M? Name the element.

    Answer:

                                        The number of protons in  The atomic number is 7.                      Number of protons + Number of neutrons = Mass number = 7 + 7 = 14 mass number            As the atomic number is 7. The element is nitrogen.


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