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11th Class Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank 11th CBSE Chemistry Some Basic Concepts of Chemistry

  • question_answer
    Why are the atomic masses of most of the elements fractional?

    Answer:

                    This is because atomic masses are the relative masses of atoms as compared with an atom of C-12 isotope taken as 12.


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