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

  • question_answer
      The atomic number of Al and Cl are 13 and 17, respectively. What will be the number of electrons in  and ?

    Answer:

                      Atomic number of Al = Number of electrons =13 Number of electrons in  = 13-3 = 10 Atomic number of chlorine = Number of electrons =17 Number of electrons in  =17+1=18


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