Periodic Table Trends: Nuclear Charge and Atomic Size
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Questions and Answers

Which factor influences ionization energy by making it easier to remove electrons as atomic size increases?

  • Valence electrons
  • Distance from the nucleus (correct)
  • Types of electrons
  • Effective nuclear charge
  • In which region of the periodic table are elements most likely to have a low tendency to lose electrons?

  • Alkaline earth metals
  • Non-metals (correct)
  • Transition metals
  • Alkali metals
  • What is the main reason why non-metals have high ionization energy?

  • They are close to the nucleus (correct)
  • They easily lose electrons
  • Their effective nuclear charge is low
  • They have a high number of shells
  • Which set of elements would be ranked in order of decreasing ionization energy from highest to lowest?

    <p>Cl, F, I, Br</p> Signup and view all the answers

    What effect does effective nuclear charge have on ionization energy?

    <p>Increases it</p> Signup and view all the answers

    What happens to the nuclear charge as you move down a group in the periodic table?

    <p>Progressively increases</p> Signup and view all the answers

    How is atomic radius defined for metals?

    <p>One-half the distance between nuclei of adjacent atoms</p> Signup and view all the answers

    Why is it difficult to measure the size of an atom directly?

    <p>The electron cloud enveloping the nucleus does not have a clear boundary</p> Signup and view all the answers

    Which factor mainly determines the atomic radius of elements as you move down a group?

    <p>Number of shells</p> Signup and view all the answers

    How is atomic radius defined for diatomic molecules like chlorine?

    <p>One-half the distance between nuclei of atoms in the molecule</p> Signup and view all the answers

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