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Electron Configuration Quiz

Total questions: 35

Worksheet time: 3hrs 55mins

Name
Class
Date
1.
What atom matches this electron configuration?
1s2 2s2 2p6 3s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
2.
Which is the electron configuration for an oxygen atom?
a)
1s22s22p63s23p64s2
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p6
3.
How many valence electrons are represented here?
a)
7
b)
5
c)
2
d)
8
4.
How many d orbitals are there in a given sublevel?
a)
1
b)
3
c)
5
d)
7
5.
How many p orbitals are there in a sublevel?
a)
2
b)
1
c)
4
d)
3
6.
How many electrons can the d sublevel hold?
a)
8
b)
10
c)
2
d)
4
7.
What is this element? 
1s22s22p63s23p6
4s23d104p6
a)
Argon
b)
Krypton
c)
Selenium
d)
Bromide
8.
What atom matches this electron configuration?
[Xe] 6s2 4f14 5d9
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
9.
What is the shorthand electron configuration for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p3
10.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
11.
How many valence electrons does Chlorine have?
a)
5
b)
2
c)
7
d)
5
12.
How many valence electrons does phosphorus have?
a)
5
b)
2
c)
8
d)
15
13.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
14.
What noble gas should be used to write the shorthand configuration for Te?
a)
Ar
b)
Kr
c)
Xe
d)
Sb
15.
How many electrons can the s sublevel hold?
a)
14
b)
10
c)
2
d)
6
16.
There are 4 different types of subshells (orbitals) s,p,d,f.
a)
true
b)
false
17.
What is the electronic configuration of iron?
a)
1s22s22p63s23p64s23d6
b)
1s22s22p63s23p63d8
c)
1s22p63s23p64s23d6
d)
1s22s22p63s23p64s13d6
18.
Which electron configuration belongs to Copper (Cu)?
a)
1s2 2s2 2p6 3s2 3p6 4s2 3d8
b)
1s2 2s2 2p6 3s2 3p6 4s2 3d9
c)
1s2 2s2 2p6 3s2 3p6 4s2 3d10
19.

What electron configuration matches an oxygen atom?

a)

1s22s22p63s2, 3p64s23d104p5

b)

1s22s22p4

c)

1s22s22p6

d)

1s22s22p63s23p64s23d1

20.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
21.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
22.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
23.
Which of the following elements is a noble gas?
a)
1s2 2s2
b)
1s2 2s2 2p5
c)
1s2 2s2 2p6 3s2 3p6
d)
1s2 2s2 2p6 3s1
24.
Which of the following is the correct electron configuration for a carbon atom?
a)
1s2 2s2 2p6 3s2 3p2
b)
1s2 2s2 2p6 3s2 3p6
c)
1s2 2s2 2p2
d)
1s2 2s2 2p6 3s2 3p6 4s2 4p2
25.

What element has the following electron configuration?

1s22s22p63s23p64s23d104p65s1

a)

Rubidium (Rb)

b)

Halfnium (Hf)

c)

Aluminum (Al)

d)

Potassium (K)

26.

What element has the following electron configuration:

1s22s22p63s23p64s23d104p5

a)

Bromine (Br)

b)

Chlorine (Cl)

c)

Calcium (Ca)

d)

Manganese (Mn)

27.

What electron configuration matches an oxygen (O) atom?

a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
28.
What atom matches this electron configuration?
[Xe] 6s2 4f14 5d9
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
29.

Choose the correct electron configuration for Nitrogen:

a)

1s2 2s2 2p6

b)

1s2 2s2 2p8

c)

1s2 2s2 2p1

d)

1s2 2s2 2p3

30.

What is the next orbital filled after 4s?

a)

5s

b)

3d

c)

4p

d)

3p

31.

What is the correct electron configuration for Phosphorus (15)?

a)

1s22s22p63s23p4

b)

1s22s22p63s23d3

c)

1s22s22p63s23p3

d)

1s2s2p3s3p

32.

What is the correct electron configuration for Titanium (22)?

a)

1s22s22p63s23p4

b)

1s22s22p63s23p64s23d2

c)

1s22s22p63s23p64s24p2

d)

1s22s22p63s23p64s24d2

33.

The electron configuration for Cobalt is 1s22s22p63s23p64s23d7. What would the ion configuration look like if Cobalt has a +2 charge?

a)

1s22s22p63s23p64s23d7

b)

1s22s22p63s23p63d7

c)

1s22s22p63s23p64s23d5

d)

1s22s22p63s23p64s23d10

34.

The electron configuration for Nitrogen is 1s22s22p3. What would the electron configuration of the ion look like if Nitrogen has a -3 charge?

a)

1s22s22p6

b)

1s22s2

c)

1s22s22p3

d)

1s22s22p5

35.

Which is the electron configuration for beryllium?

a)
b)
c)
d)

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