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Atomic radius Knowledge-Based Practice

Chemistry · The Periodic Table · Chemistry · Periodic Trends

1 Chemistry practice questions on Atomic radius. Questions that assess core concepts and understanding.

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Questions

  1. 1.

    Which of the following statements correctly explains why atomic radius generally decreases across a period from left to right in the periodic table?

    • A) The number of occupied principal energy levels increases, pulling the valence electrons further from the nucleus.
    • B) The effective nuclear charge increases while the shielding effect remains relatively constant, drawing valence electrons closer to the nucleus.
    • C) Electrostatic repulsion between additional valence electrons increases, causing the outer electron cloud to contract.
    • D) An increasing number of nuclear neutrons exerts a stronger gravitational attraction on the outer electrons.

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