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Which of the 3d series of the transition metals exhibits the largest number of oxidation states and why?

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asked Dec 25, 2017 in Chemistry by sforrest072 (157,439 points) ● 60 ● 409 ● 935
Which of the 3d series of the transition metals exhibits the largest number of oxidation states and why?

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+1 vote
answered Dec 25, 2017 by mdsamim (213,225 points) ● 5 ● 10 ● 15
selected Dec 25, 2017 by sforrest072
 
Best answer

Mn (Z = 25) = 3d5 4s2
Mn has the maximum number of unpaired electrons present in the d-subshell (5 electrons). Hence, Mn exhibits the largest number of oxidation states, ranging from +2 to +7.

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