Quantum Numbers in Chemistry
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Questions and Answers

According to the Pauli Exclusion Principle, how many electrons can fit in an orbital?

  • Two electrons with opposite spins (correct)
  • Two electrons with the same spin
  • One electron
  • Three electrons
  • Which quantum number is used to determine the orientation of an orbital within a subshell?

  • Spin quantum number
  • Azimuthal quantum number
  • Principal quantum number
  • Magnetic quantum number (correct)
  • Which quantum number has integer values between 0 and n-1?

  • Azimuthal quantum number, l (correct)
  • Magnetic quantum number, ml
  • Principal quantum number, n
  • Spin quantum number, ms
  • According to Hund's Rule, why are electrons singly filled in each orbital before pairing occurs?

    <p>To maximize the total spin of the system</p> Signup and view all the answers

    According to the Aufbau principle, in which order do electrons occupy orbitals?

    <p>Starting from the lowest energy orbitals</p> Signup and view all the answers

    How does Hund's Rule affect the spins of electrons in the same subshell?

    <p>Electrons in the same subshell have the same spin</p> Signup and view all the answers

    What does the spin quantum number, ms, indicate?

    <p>Orientation of the spin axis of an electron</p> Signup and view all the answers

    In which order are electrons filled in the 3d subshell according to electron configuration principles?

    <p>3d, 4s, 4p, 4d</p> Signup and view all the answers

    Which quantum number describes the size of an orbital?

    <p>Principal quantum number, n</p> Signup and view all the answers

    What is the range of values for the magnetic quantum number, ml?

    <p>-l to +l</p> Signup and view all the answers

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