What may be the stable oxidation state of the transition element with the following d electron configurations in the ground state of their atoms: 3d3, 3d5, 3d8 and 3d4?


For answering this question, we can compare the electronic configuration of standard elements and then write their corresponding oxidation states.


S. No



Electronic configurations in ground state



Stable oxidation states



1



3d3 Vanadium



+2,+3,+4,+5



2



3d5 Chromium



+3,+4,+6



3



3d5 Manganese



+2,+4,+6,+7



4



3d8 Nickel



+1,+2,+3,+4



5



3d4



3d4 configuration is not stable at ground state



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