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Moderate

Atomic Models: Electron Configurations and Ionization Energies

APCHEM-UKWZTS

Which of the following is a CORRECT comparison of the ionization energies of lithium and fluorine?

A

The first ionization energy of lithium is greater than the first ionization energy of fluorine, due to an increased effective nuclear charge.

B

The first ionization energy of fluorine is greater than the first ionization energy of lithium, due to an increased effective nuclear charge.

C

The first ionization energy of lithium is greater than the first ionization energy of fluorine, due to decreased nuclear shielding.

D

The first ionization energy of fluorine is greater than the first ionization energy of lithium, due to decreased nuclear shielding.