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Ionization Energies

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Why does lithium have a larger first ionization energy than sodium? b. the difference between the third and fourth ionization energies of scandium is much larger than the difference between the third and fourth ionization energies of titanium. Why?

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The expert examines ionization energies for lithium.

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Lithium's valence electrons are closer to the nucleus than the valence electrons of Sodium. Hence it is more difficult to remove a valence electron from ...

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