WorksheetsElectron Configurations
Total questions: 18
Worksheet time: 10mins
Name
Class
Date
1.
What atom matches this electron configuration?
1s22s22p63s2
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
2.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
3.
What is the noble gas shorthand electron for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p4
4.
What atom matches this electron configuration?
[Xe] 6s25d9
[Xe] 6s25d9
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
5.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
6.
What electron configuration matches an oxygen ion?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
7.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
8.
How many valence electrons does Si contain?
a)
14
b)
28
c)
2
d)
4
9.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
10.
An orbital can at most hold how many electrons?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
11.
The electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is
a)
3
b)
6
c)
8
d)
10
12.
The electron configuration of an atom is 1s22s22p6. The number of valence electrons in the atom is
a)
3
b)
6
c)
8
d)
10
13.
What atom is represented here?
a)
Carbon
b)
Nitrogen
c)
Oxygen
d)
Fluorine
14.
How many valence electrons are represented here?
a)
7
b)
5
c)
2
d)
8
15.
What is the electron configuration for this atom?
a)
1s22s22p6
b)
1s22s22p5
c)
1s22s22p3
d)
2s22p3
16.
What is the highest occupied energy level?
a)
1
b)
2
c)
3
d)
4
17.
What is the highest occupied energy level?
a)
4
b)
5
c)
6
d)
7
18.
How many valence electrons are there?
a)
1
b)
2
c)
8
d)
79
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