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oxidation number

osaka
in Inorganic Chemistry

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I know the oxidation number of non-metallic elements.

But

How do I know the oxidation number of transition elements.

Such as Fe and Cr

Cr = 4s1 3d5 when Cr change to Cr2+ Cr3+ Is it stable?

The oxidation number is 2 for Cr 2+ and 3 for Cr 3+, thats one of the distinctive features of transition elements, variable oxidation states

  • Author

Thank you for your help. :)

No worrys,

you need to memorise the main ones for school others aren't really required untill uni

,Mn,Cu,Fe,Cr and dichromate, permaganate etc..

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