Quiz  /  Quantum Numbers Class 9 MCQ Questions With Answers

  • 1. 
    How many electrons total are found in the f orbital?

  • 2
  • 6
  • 10
  • 14

  • 2. 
    Which orbital shows a violation of the Pauli Exclusion Principle?

  • A
  • B
  • C
  • D

  • 3. 
    Orbital sublevels, or L, represents:

  • orbital color
  • orbital shape
  • electron spin
  • energy level

  • 4. 
    This is a ____ orbital

  • s
  • d
  • p
  • d

  • 5. 
    Which values can (n) be?

  • only 0
  • 0, 1, 2, 3...
  • 1,2,3,4...
  • -2 < n < +2

  • 6. 
    This shape is that of a...

  • s orbital
  • d orbital
  • p orbital
  • f orbital

  • 7. 
    Electrons that have not been excited are said to be at:

  • high level
  • base line
  • set state
  • ground state

  • 8. 
    What is the correct representation for an orbital which has an "n" value of 4 and an "L" value of 2?

  • 4d
  • 4s
  • 4f
  • 4p

  • 9. 
    For a p sublevel, "L" equals ____.

  • 0
  • 1
  • 2
  • 3

  • 10. 
    There may be a maximum of ____ p orbitals at a given energy level.

  • 2
  • 6
  • 3
  • 8

  • 11. 
    The principle quantum number, n, represents the:

  • spin value
  • suborbital value
  • energy level
  • magnetic value

  • 12. 
    With each higher energy level, the electrons are

  • lower in energy
  • more stable
  • weaker
  • farther from the nucleus

  • 13. 
    Which of the following sets of quantum numbers (n, l, ml, and ms) describes the valence electron of Na?

  • 2, 1, 0, -½
  • 2, 0, 0, -½
  • 3, 1, 1, +½
  • 3, 0, 0, +½
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