Transition Elements: Introduction and Electronic Configuration
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Questions and Answers

Which factor primarily influences the atomic radii trend across a period?

  • Shielding effect of inner d electrons
  • Number of unpaired electrons
  • Effective nuclear charge (correct)
  • Crystal structure
  • What is the main reason for the relatively constant atomic radii within each transition series?

  • Number of unpaired electrons
  • Shielding effect of inner d electrons (correct)
  • Crystal structure
  • Strength of metallic bonding
  • Why do elements with more unpaired electrons generally have higher melting and boiling points?

  • Stronger metallic bonds (correct)
  • Variations in atomic radii
  • Presence of crystal structure
  • Increased nuclear charge
  • In the context of transition elements, what are complexes mainly formed by?

    <p>Transition metals interacting with ligands</p> Signup and view all the answers

    Why do many transition elements and their compounds exhibit magnetic behavior?

    <p>Presence of unpaired electrons in partially filled d orbitals</p> Signup and view all the answers

    What is the general electronic configuration for transition elements?

    <p>(n - 1)d^1-10 ns^1-2</p> Signup and view all the answers

    Which series are transition elements classified into based on the principal quantum number (n) of the penultimate shell?

    <p>3d, 4d, 5d, and 6d series</p> Signup and view all the answers

    What unique property of transition elements arises from the presence of partially filled d orbitals?

    <p>Variable oxidation states</p> Signup and view all the answers

    Why are transition elements versatile in chemical reactions and industrial processes?

    <p>Their ability to adopt multiple oxidation states</p> Signup and view all the answers

    How do the atomic and ionic radii of transition elements behave?

    <p>Their variation is unpredictable</p> Signup and view all the answers

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