Electron Configuration and Periodicity
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Questions and Answers

What does the principal quantum number (n) indicate?

  • Energy level and size of the orbital (correct)
  • Average relative distance of the electron from the nucleus
  • Value of l and shape of the region of space occupied by the electron
  • Energy sublevel and shape of the orbital

    • What is described by the angular momentum quantum number (l)?

  • Energy sublevel and shape of the orbital (correct)
  • Energy level and size of the orbital
  • Value of l and shape of the region of space occupied by the electron
  • Average relative distance of the electron from the nucleus

    • What does the magnetic quantum number (ml) specify?

  • Average relative distance of the electron from the nucleus
  • Energy sublevel and shape of the orbital
  • Orientation of an orbital around the nucleus (correct)
  • Energy level and size of the orbital

    • What is determined by the spin quantum number (ms)?

    <p>The direction of spin for an electron in an orbital</p> Signup and view all the answers

    How many orbitals are present in an energy level with principal quantum number (n) = 3?

    <p>$9$</p> Signup and view all the answers

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