Rank the following species from lowest to highest 2nd Ionization energies : F, …

Rank the following species from lowest to highest 2nd Ionization energies :

F, C, Ga, Fe, Mg, K


"The Periodic Table", image retrieved from Chemistry 2e (https://d3bxy9euw4e147.cloudfront.net/oscms-prodcms/media/documents/Chemistry2e-OP_QCzV58S.pdf) by Flowers, P et al., is licensed under CC BY.
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