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9th Class Science Structure of the Atom

  • question_answer 24)
    Na+ has completely filled K and L shells. Explain.

    Answer:

    Atomic number of sodium (Na) = 11  No. of electrons in Na = 11 No. of electrons in Na+ = 11 – 1 = 10 Electronic configuration of  Na+ → 2, 8                                                        K   L Thus, in Na+, K and L shells are completely filled.                                        


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