why there are more unpaired electrons in O2 as compared to [02]-2 ?????
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Answer:
here your answer is.....
Explanation:
As we know valency of oxygen is 2 .
according to the electronic configuration of the element ( he) 2s²2p^4 there are two unpaired electrons in 2py and 2pz orbitals.
as this oxygen atom gains two electrons and become (o2)-².so, 2py and 2pz orbitals are paired and exist as noble gases.
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