Q.1
The principle quantum number, n, represents the:
  • spin value
  • suborbital value
  • energy level
  • magnetic value
Q.2
Orbital sublevels, or L, represents:
  • orbital color
  • orbital shape
  • electron spin
  • energy level
Q.3
For a p sublevel, "L" equals ____.
  • 0
  • 1
  • 2
  • 3
Q.4
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
Q.5
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
Q.6
Electrons that have not been excited are said to be at:
  • high level
  • base line
  • set state
  • ground state
Q.7
There may be a maximum of ____ p orbitals at a given energy level.
  • 2
  • 6
  • 3
  • 8
Q.8
Which orbitals cannot exist
  • 3p
  • 4d
  • 3f
  • 6s
Q.9
The difference between an orbit and an orbital is:
  • an orbit is a set path, but an orbital has no dimension
  • an orbital is a set path, but an orbit cannot be defined
  • an orbit is a set path, but an orbital is a 3-dimensional region in which electrons may be found with high probability
  • there is no difference when it comes to electron configurations
Q.10
The spin of an electron is represented by this variable:
  • n
  • l
  • m
  • s
Q.11
How many valence electrons are in an atom of sulfur?
  • 2
  • 4
  • 6
  • 8
Q.12
Which of the following quantum number sets is not allowed?
  • { 3, 2, +1, -1/2 }
  • { 5, 3, -1, +1/2 }
  • { 12, 1, +2, +1/2 }
  • { 7, 6, -5, -1/2 }
Q.13
According to the Aufbau Principle, which sublevel should starting filling with electrons after 5s?
  • 6s
  • 5p
  • 4d
  • 3f
Q.14
How many orbitals are available to hold electrons in the 4th energy level (n=4)?
  • 4
  • 8
  • 16
  • 32
Q.15
The maximum number of electrons with quantum numbers with n=3 and l=2 is
  • 2
  • 4
  • 6
  • 10
Q.16
How many orbitals (including sub orbitals) are found in a shell with n = 2?
  • 2
  • 3
  • 4
Q.17
Identify the subshell in which electrons with the following quantum numbers are found:n =l = 2
  • 3s
  • 3p
  • 3d
Q.18
Which set of Quantum numbers is not allowed
  • (3,1,1,-1/2)
  • (2,1,-2,+1/2)
  • (4,2,-1,-1/2)
Q.19
Write a set of quantum numbers for aorbital.
  • (4,1,0, -1/2)
  • (4,2,-2, +1/2)
  • (4,0,2,-1/2)
Q.20
How manyorbitals are there in an atom?
  • 1
  • 3
  • 5
0 h : 0 m : 1 s