Chemistry

Problem

Two hypothetical atoms, A and B, each contain a single valence electron in the same principal energy level. Experimental estimates give the following data: Atom A: effective nuclear charge experienced by the valence electron,

Z_{\text{eff}} = 4.0

; atomic radius

= 70\,\text{pm}

Atom B: effective nuclear charge experienced by the valence electron,

Z_{\text{eff}} = 3.0

; atomic radius

= 100\,\text{pm}

Based on these data, which atom is expected to have the larger first ionization energy? a) Both atoms should have nearly identical first ionization energies b) Atom B only c) Atom A only d) The available data are insufficient to make a prediction

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