Chemistry Chapter 5 Quiz
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Questions and Answers

Which principle explains that no two electrons can have the same set of quantum numbers?

  • Hund's rule
  • Pauli's exclusion principle (correct)
  • Quantum mechanical model
  • Aufbau principle

    • What is the maximum number of electrons that can occupy the p-sublevel?

  • 10
  • 2
  • 6 (correct)
  • 8

    • How are elements in Group 17 of the periodic table primarily characterized?

  • Highly reactive non-metals (correct)
  • Non-reactive gases
  • Silvery and highly conductive
  • Dull metals with low melting points

    • Which scientist is credited with developing a refined version of the periodic table based on atomic number?

    <p>Moseley</p> Signup and view all the answers

    Which of the following statements about valence electrons is correct?

    <p>Valence electrons are responsible for the charge of an atom.</p> Signup and view all the answers

    Which of the following best describes Hund's Rule?

    <p>Electrons occupy equal energy orbitals singly before pairing up.</p> Signup and view all the answers

    What is the mass number of an isotope defined as?

    <p>The total number of protons and neutrons in an atom.</p> Signup and view all the answers

    Which configuration represents the electron arrangement of Oxygen in abbreviated form?

    <p>[Ne] 2s22p4</p> Signup and view all the answers

    Which of the following statements about atomic number is true?

    <p>The atomic number represents the number of protons in an atom.</p> Signup and view all the answers

    What defines isotopes?

    <p>Atoms with the same number of protons but a different number of neutrons.</p> Signup and view all the answers

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