# The correct order of E_(M^(2+)//M)^(@) Values with negative sign for the four successive elements Cr, Mn, Fe and Co is:

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The correct order of E_(M^(2+)//M)^(@) Values with negative sign for the four successive elements Cr, Mn, Fe and Co is:
A. MngtCrgtFegtCo
B. CrgtFegtMngtCo
C. FegtMngtCrgtCo
D. CrgtMngtFegtCo

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