The successive ionization energies of an element (in kJ·mol⁻¹) are: IE₁ = 1012, IE₂ =…

CHEMISTRY · Subjective · A Level · Chemistry · Periodicity and periodic trends · Periodicity and periodic trends

Problem

The successive ionization energies of an element (in kJ·mol⁻¹) are: IE₁ = 1012, IE₂ = 1903, IE₃ = 2910, IE₄ = 15 800. Describe what the large increase between IE₃ and IE₄ reveals about the electronic structure of this atom.

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