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  3. 9th Class
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  5. Structure of the Atom

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

  • question_answer
      The number electrons in the outermost shell of chlorine is 7. What is its valency and why?

    Answer:

      Its valency is 1, because it can gain 1 electron to complete its octet.


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