Consider the elements: Cs, Ne, I and F Identify the element that … - Vidyadip

Question

Consider the elements:

Cs, Ne, I and F

Identify the element that exhibits both positive and negative oxidation states.

✓

Answer

I. Because of the presence of seven electrons in the valence shell, I shows an oxidation state of -1 (in compounds of I with more electropositive elements such as H, Na, K, Ca, etc.) or an oxidation state of +1 compounds of I with more electronegative elements, i.e., O, F, etc.) and because of the presence of d-orbitals it also exhibits +ve oxidation states of +3, +5 and +7.

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