Periodic Properties of Elements
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Questions and Answers

What is the total positive charge in the nucleus of an atom called?

  • Valence charge
  • Nuclear charge (correct)
  • Inner shell charge
  • Effective charge
  • What is the difference between the nuclear charge (Z) and the inner electrons (S) that shield the valence electrons?

  • Inner shell charge
  • Effective nuclear charge (correct)
  • Valence charge
  • Electron affinity
  • How does the attraction of the nucleus for the valence electrons change due to inner electrons shielding the valence electrons?

  • It decreases (correct)
  • It remains unchanged
  • It becomes zero
  • It increases
  • What is the term for the total positive charge in the nucleus of an atom minus the shielding effect of inner electrons?

    <p>Effective nuclear charge</p> Signup and view all the answers

    Which factor completely cancels the 10 units of nuclear charge on the nucleus of Mg?

    <p>Inner electrons</p> Signup and view all the answers

    What is the term used to describe the fact that inner electrons shield or screen the outer electrons from the full charge of the nucleus?

    <p>Shielding or screening effect</p> Signup and view all the answers

    In which region of the periodic table do you find elements with the lowest tendency to lose electrons?

    <p>Down a given group</p> Signup and view all the answers

    How do atomic radii change in a period of the periodic table?

    <p>They decrease from left to right</p> Signup and view all the answers

    What is the term for the minimum amount of energy required to remove an electron from an isolated gaseous atom or ion in its ground state to form a gaseous ion?

    <p>Ionization energy</p> Signup and view all the answers

    What happens to the atomic radii in a group of the periodic table?

    <p>They increase from top to bottom</p> Signup and view all the answers

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