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

  • question_answer
      Na+ has completely filled K and L shells. Explain.     

    Answer:

                      Sodium has atomic number 11 (K = 2, L = 8, M = 1). Na+ is formed when one electron is lost by sodium atom (K = 2, L = 8) as given below: Thus, Na + has completely filled K and L shells.


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