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Consider the atoms/ions K+, Fe^2+, Sc^3+, Br and N. Which one would require the most energy...

Consider the atoms/ions K+, Fe^2+, Sc^3+, Br and N.

Which one would require the most energy to remove an additional electron?

Which one has the smallest radius?

Which one has the smallest electron affinity?

Which are paramagnetic?

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