10th Class Science Metals and Non-metals / धातु और अधातु Question Bank 10th CBSE Science Metals and Non-metals

  • question_answer
              How do we find whether a given element is a non-metal, if we know its electronic configuration?   

    Answer:

                      If there are four or more than four electrons present  in the valence shell of the given element, the element is a non-metal.    


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