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11th Class Chemistry Structure of Atom / परमाणु संरचना

  • question_answer 115)
      An atom having atomic mass number 13 has 7 neutrons. What is the atomic number of the atom?

    Answer:

      Mass Number = Number of protons + Number of neutrons \[13\,\,\,\,\,\,\,\,\,\,\,=p\,\,\,\,\,\,\,\,+\,\,\,\,\,\,\,\,\,\,\,\,\,7\] \[p=6\] \[\therefore \] Atomic number = 6


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