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Coulomb's law and periodic trends Knowledge-Based Practice

Chemistry · The Periodic Table · Chemistry · Periodic Trends

1 Chemistry practice questions on Coulomb's law and periodic trends. Questions that assess core concepts and understanding.

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Questions

  1. 1.

    According to Coulomb's law, which of the following statements best explains why the first ionization energy generally increases from left to right across Period 3 of the periodic table?

    • A) The addition of electrons to higher principal energy levels increases the distance between the nucleus and the valence shell.
    • B) The shielding effect of inner-shell electrons increases significantly across the period, lowering the net electrostatic attraction.
    • C) The decrease in electron-electron repulsions within the valence shell causes the outer electrons to be held at greater distances.
    • D) The effective nuclear charge increases while valence electrons are added to the same principal energy level, resulting in a stronger electrostatic attraction to the nucleus.

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