Chemistry Performance Task: Electron Configuration and Valence Electrons
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Questions and Answers

Which element among the listed ones has the highest atomic number?

  • Rhenium (Re) (correct)
  • Gallium (Ga)
  • Protactinium (Pa)
  • Lanthanum (La)

    • Which element has the electron configuration ending in '4d^7 5s^1'?

  • Protactinium (Pa)
  • Molybdenum (Mo) (correct)
  • Rhenium (Re)
  • Gallium (Ga)

    • Which element belongs to the lanthanide series?

  • Gallium (Ga)
  • Protactinium (Pa)
  • Lanthanum (La) (correct)
  • Molybdenum (Mo)

    • Among the listed elements, which one would exhibit characteristics of a transition metal?

    <p>Rhenium (Re)</p> Signup and view all the answers

    Which element has a valence electron configuration of '6s^2 4f^14 5d^4'?

    <p>Protactinium (Pa)</p> Signup and view all the answers

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