O2+ is paramagnetic or diamagnetic?

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O2+ is paramagnetic or diamagnetic?

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Answer 1 · 2017-11-21T09:18:48

Paramagnetic

Explanation:

We can work this out by looking at the molecular orbital diagram of $O_{2}$ $O_2$

$O_{2}^{+}$ $O_2^+$ has 1 fewer electron than $O_{2}$ $O_2$ which is what gives it the positive charge.

The electron would be removed from the $π$ $pi$ orbital, as this is the highest in energy. Removing one electron from the $π$ $pi$ orbital still leaves one unpaired electron in the other $π$ $pi$ * orbital.

Since $O_{2}^{+}$ $O_2^+$ has an unpaired electron it is paramagnetic.

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O2+ is paramagnetic or diamagnetic?

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