Question 6.2: HIGHER IONIZATION ENERGIES Which has the larger fifth ioniza...

HIGHER IONIZATION ENERGIES

Which has the larger fifth ionization energy, Ge or As?

STRATEGY
Look at their positions in the periodic table. The group 4A element germanium has four valence-shell electrons and thus has four relatively low ionization energies, whereas the group 5A element arsenic has five valence-shell electrons and has five low ionization energies.

periodic table
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Germanium has a larger E_{i5} than arsenic.

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