Which of the following species has the lowest | vedclass

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(D) The ionization potential is the energy required to remove an electron from a gaseous species. Comparing the species: $O_2^-$ has an extra electron

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$O_2^-$

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(D) The ionization potential is the energy required to remove an electron from a gaseous species. Comparing the species: $O_2^-$ has an extra electron compared to $O_2$,making it more unstable and easier to lose an electron. $O$ is an atom,while the others are molecules. Among the given species,$O_2^-$ has the highest electron density and the least effective nuclear charge per electron,making it the easiest to ionize. Therefore,$O_2^-$ has the lowest ionization potential.

Which of the following species has the lowest ionization potential?

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