Question:
why flourine has never positive oxidation state
Answer:
Flourine has atomic no = 9
So, its electronic configuration is 2,7.
That is, the last shell of the flourine atom has 7 electrons. So it just needs one more electron to complete the octet. Since it does not lose electrons naturally at all, it does not have a positive oxidation state. And because it gains one electron, its oxidation state is 1-.
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