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

  • question_answer
      An atom 'M' of an element reacts with oxygen to form Calculate the valency of the element 'M'.

    Answer:

                      Two atoms of element 'M' combine with 3 atoms of oxygen.                 Number of oxygen atoms combining  with one atom of element Therefore, the valency of element


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