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CHM 2045C Module Three Part II Multiple Choice Makeup Retest  Bonus up to 20 po

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 
Which of the following colors of visible light has the longest wavelength?
a.
orange
b.
blue
c.
red
d.
green
e.
yellow
 

 2. 
Which of the following statements is INCORRECT?
a.
The location and the energy of an electron in an atom can be simultaneously known with little or no uncertainty.
b.
The energies of an atom's electrons are quantized.
c.
Quantum numbers define the energy states and the orbitals available to an electron.
d.
The behavior of an atom's electrons can be described by standing waves.
e.
Electrons have both wave and particle properties.
 

 3. 
What type of orbital is designated n = 3, l = 2, ml = -1?
a.
3s
b.
3p
c.
3d
d.
2f
e.
2d
 

 4. 
What shell contains a total of 9 orbitals?
a.
n = 1
b.
n = 2
c.
n = 3
d.
n = 4
e.
n = 5
 

 5. 
Which of the following sets of quantum numbers refers to a 4p orbital?
a.
n = 1, l = 1, ml = -1
b.
n = 1, l = 2, ml = -1
c.
n = 4, l = 1, ml = 0
d.
n = 4, l = 2, ml = -1
e.
n = 4, l = 3, ml = +2
 

 6. 
All of the following sets of quantum numbers are allowed EXCEPT
a.
n = 6, l = 0, ml = +1
b.
n = 5, l = 4, ml = 0
c.
n = 4, l = 1, ml = -1
d.
n = 3, l = 2, ml = +2
e.
n = 1, l = 0, ml = 0
 

 7. 
What is the total number of orbitals having n = 5 and l = 1?
a.
1
b.
2
c.
3
d.
5
e.
10
 

 8. 
Which of the following diagrams represent d-orbitals?

45m3iiretest_files/i0090000.jpg
a.
(I) only
b.
(II) only
c.
(III) only
d.
(IV) only
e.
(I) and (IV)
 

 9. 
Which of the following regions of the electromagnetic spectrum have longer wavelengths than visible light?

1.
FM radio waves
2.
x-rays
3.
microwaves
a.
1 only
b.
2 only
c.
3 only
d.
1 and 2
e.
1 and 3
 

 10. 
If a hydrogen atom in the excited n = 3 state relaxes to the ground state, what is the maximum number of possible emission lines?
a.
0
b.
1
c.
2
d.
3
e.
infinite
 

 11. 
The Schrödinger wave equation
a.
calculates the position and momentum of an electron at any given time.
b.
can be solved to determine the probability of finding an electron in a region of space.
c.
proves that energy is equal to mass times the speed of light squared.
d.
incorrectly predicts circular orbits of electrons around nuclei.
e.
is used to calculate the velocity of an electron.
 

 12. 
What type of orbital is designated n = 2, l = 0, ml = 0?
a.
2s
b.
2p
c.
2d
d.
2f
e.
none
 

 13. 
What type of orbital is designated n = 4, l = 3, ml = -3?
a.
4s
b.
4p
c.
4d
d.
4f
e.
none
 

 14. 
How many orbitals have the following set of quantum numbers: n = 6, l = 3, ml = -2?
a.
0
b.
1
c.
3
d.
6
e.
7
 

 15. 
All of the following sets of quantum numbers are allowed EXCEPT
a.
n = 5, l = 3, ml = +2
b.
n = 3, l = 2, ml = -1
c.
n = 3, l = 0, ml = 0
d.
n = 4, l = 4, ml = -2
e.
n = 5, l = 3, ml = +3
 

 16. 
Which of the following properties is associated with the value of the ml quantum number?
a.
the number of electrons in an orbital
b.
the size of an orbital
c.
the shape of an orbital
d.
the energy of an orbital
e.
the orientation in space of an orbital
 

 17. 
Which of the following orbitals might have ml = -2?
a.
s
b.
s and p
c.
p and d
d.
d and f
e.
p, d, and f
 

 18. 
How many nodal planes exist for a 2p orbital?
a.
0
b.
1
c.
2
d.
3
e.
4
 

 19. 
The n = ____ shell is the lowest that may contain p-orbitals.
a.
2
b.
3
c.
4
d.
5
e.
6
 

 20. 
Which of the following diagrams represent p-orbitals?

45m3iiretest_files/i0210000.jpg
a.
(I) only
b.
(II) only
c.
(III) only
d.
(IV) only
e.
(I) and (II)
 



 
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