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11th Class Chemistry Structure of the Atom Question Bank 11th CBSE Chemistry Structure of the Atom

  • question_answer
    One unpaired electron in an atom contributes a magnetic moment of 1.1 B.M. Calculate the magnetic moment for chromium.

    Answer:

                    E.C. of \[Cr=[Ar]\,3{{d}^{5}}\,4{{s}^{1}},\] i.e., it has 6 unpaired electrons. Hence, its magnetic moment \[=6\times 1\cdot 1=6\cdot 6\,B.M.\]


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