Question

Why group 17 show odd number oxidation state

Answer 1

Answer:

Halogen atoms have 7 electrons in their valence shell, so 1 of those electrons is spin unpaired, which is an unstable situation. ... Taking away an odd number of electrons leaves an even number of electrons with the opportunity of them to be all paired.

Explanation:

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Answer 2

Answer:

Halogen atoms have 7 electrons in their valence shell so one of those electrons is spin unpaired, which is an unstable situation.... taking away on odd number of electrons leaves an even number of electrons with the opportunity of them to be all paired.