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9th Class Science Structure of the Atom

  • question_answer 49)
      The electron distribution in an aluminium atom is (a) 1, 8, 3                              (b) 2, 8, 2                             (c) 8, 2, 3                              (d) 2, 3, 8

    Answer:

      (a) Aluminium atom has 13 protons and 13 electrons.         K L M Therefore, Electronic configuration of


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