Modern Periodic Table Gradation Quiz

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Questions and Answers

Which of the following statements best describes the effect of increasing the number of electrons on the nucleus charge in a negative ion?

  • The effect of the nucleus charge on the electrons' attraction decreases, resulting in a decrease in the energy level radius.
  • The repulsion force between the electrons decreases, leading to a decrease in the energy level radius.
  • The effect of the nucleus charge on the electrons' attraction increases, resulting in an increase in the energy level radius.
  • The repulsion force between the electrons increases, leading to an increase in the energy level radius. (correct)

What trend is observed for ionization energy (IE) as we move down a group in the periodic table?

  • Ionization energy fluctuates
  • Ionization energy decreases (correct)
  • Ionization energy increases
  • Ionization energy remains constant

What is the relationship between effective nuclear charge and the pulling of electrons closer to the nucleus?

  • A larger effective nuclear charge pulls electrons closer to the nucleus (correct)
  • A larger effective nuclear charge pushes electrons away from the nucleus
  • A larger effective nuclear charge has an unpredictable effect on electron position
  • Effective nuclear charge has no effect on electron position

What effect does increasing the number of electrons have on the nucleus charge in a negative ion?

<p>The repulsion force between the electrons increases, causing an increase in the energy level radius (D)</p> Signup and view all the answers

What happens to the ionization energy as we move from up to down in a group?

<p>The ionization energy decreases (D)</p> Signup and view all the answers

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