The chemical effects of this increase in electronegativity can be seen... - dofaq.co
electronegativity

The chemical effects of this increase in electronegativity can be seen...

wikipedia - 22 Jul 2015
The chemical effects of this increase in electronegativity can be seen both in the structures of oxides and halides and in the acidity of oxides and oxoacids. Hence CrO3 and Mn2O7 are acidic oxides with low melting points, while Cr2O3 is amphoteric and Mn2O3 is a completely basic oxide.

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