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Ionization energy Transitional Reasoning Practice

Chemistry · The Periodic Table · Chemistry · Periodic Trends

1 Chemistry practice questions on Ionization energy. Questions that build towards applied reasoning.

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Questions

  1. 1.

    A laboratory team investigates three main-group elements, designated as X, Y, and Z, all located in the third period of the periodic table. Successive ionization energy measurements demonstrate that the greatest sudden increase occurs between the second and third ionization energies for element X, between the third and fourth for element Y, and between the first and second for element Z. Based on this experimental data, which of the following evaluations is correct regarding these elements?

    • A) Element Y has the largest atomic radius among the three elements because it possesses the greatest number of valence electrons.
    • B) Element Z requires more energy to remove its first valence electron than element X does because of its smaller nuclear charge.
    • C) Element X tends to form stable ionic compounds in which its oxidation state is +3 because it easily loses three valence electrons.
    • D) The first ionization energy of element X is greater than that of element Y because removing an electron from a completely filled s subshell requires more energy than removing a single shielded p electron.

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