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Chemistry Quiz: Electron Configurations and Orbital Notation

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

 1 
The elements whose electron configurations end with s2 p5 in the highest occupied energy level belong to Group
A)
3.
C)
17.
B)
10.
D)
7.
 

 2 
If the spin of one electron in an orbital is clockwise, what is the spin of the other electron in that orbital?
A)
counterclockwise
C)
zero
B)
clockwise
D)
both clockwise and counterclockwise
 

 3 
Bromine, atomic number 35, belongs to Group 17. How many electrons does bromine have in its outermost energy level?
A)
35
C)
17
B)
7
D)
18
 

 4 
What element has the electron configuration 1smc004-1.jpg2smc004-2.jpg2pmc004-3.jpg3smc004-4.jpg3pmc004-5.jpg?
A)
silver
C)
selenium
B)
nitrogen
D)
silicon
 

 5 
The statement that an electron occupies the lowest available energy orbital is
A)
Hund's rule.
C)
the Pauli exclusion principle.
B)
the Aufbau principle.
D)
Bohr's law.
 

 6 
Which orbital notation correctly represents the outermost principal energy level of oxygen in the ground state?
A)
mc006-1.jpg
C)
mc006-3.jpg
B)
mc006-2.jpg
D)
mc006-4.jpg
 

 7 
How many electrons can occupy the s orbitals at each energy level?
A)
two, if they have the same spin
B)
two, if they have opposite spins
C)
no more than eight
D)
one
 

 8 
"Orbitals of equal energy are each occupied by one electron before any is occupied by a second electron" is a statement of
A)
the Pauli exclusion principle.
C)
the quantum effect.
B)
the Aufbau principle.
D)
Hund's rule.
 

 9 
What is the electron configuration of potassium?
A)
1smc009-1.jpg2smc009-2.jpg2pmc009-3.jpg3smc009-4.jpg3pmc009-5.jpg4smc009-6.jpg
C)
1smc009-13.jpg2smc009-14.jpg3smc009-15.jpg3pmc009-16.jpg3dmc009-17.jpg
B)
1smc009-7.jpg2smc009-8.jpg2pmc009-9.jpg3smc009-10.jpg3pmc009-11.jpg4smc009-12.jpg
D)
1smc009-18.jpg2smc009-19.jpg2pmc009-20.jpg3smc009-21.jpg3pmc009-22.jpg
 

 10 
Strontium's highest occupied energy level is 5s2. To what group on the periodic table does strontium belong?
A)
Group 6
C)
Group 5
B)
Group 2
D)
Group 8
 

 11 
The number of electrons in the highest energy level of the argon atom (atomic number 18) is
A)
8.
C)
2.
B)
10.
D)
6.
 

 12 
The number of orbitals for the d sublevel is
A)
5.
C)
3.
B)
7.
D)
1.
 

 13 
The number of valence electrons in Group 1 elements is
A)
1.
C)
2.
B)
8.
D)
equal to the period number.
 

 14 

mc014-1.jpg
A)
A
C)
C
B)
B
D)
D
 

 15 
What is the Noble Gas notation of Gold in it’s ground state?
A)
[Xe]4f145d106s1
C)
[Rn]4f145d106s1
B)
[Xe]4f146s25d9
D)
[Rn]4f146s25d9
 



 
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