Question

Why higher oxidation state atoms forms covalent bond but lower oxidation no atoms forms ionic bond?

Answer 1

Explanation:

Oxides with low oxidation states tend to be more ionic, whereas those with higher oxidation states are more covalent. These variations in bonding are because the electronegativities of the elements are not fixed values. The electronegativity of an element increases with increasing oxidation state.

for lower oxidation check the above attachment

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