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WorksheetsElectron Configuration Practice
Total questions: 18
Worksheet time: 36mins
Name
Class
Date
1.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
2.
What atom matches this electron configuration?
1s22s22p63s2
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
3.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
4.
Which electron configuration belongs to Chlorine (Cl)?
a)
1s2 2s2 2p6 3s2 3p5
b)
1s2 2s2 2p6 3s2 3p6
c)
1s2 2s2 2p6 3s2 3p7
5.
How many electrons can the d sublevel hold?
a)
8
b)
10
c)
2
d)
4
6.
What is the shorthand electron configuration for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p3
7.
Which of the following is a p block element?
a)
Ca
b)
Ar
c)
Re
d)
Au
8.
Maximum number of electrons that can be placed in an s orbital.
a)
2
b)
6
c)
10
d)
14
9.
The maximum number of electrons that can be placed in the p subshell.
a)
2
b)
6
c)
10
d)
14
10.
The electron configuration of an atom is 1s22s22p6. The number of electrons in the atom is
a)
3
b)
6
c)
8
d)
10
11.
Choose the correct electron configuration for Nitrogen:
a)
1s2 2s2 2p6
b)
1s2 2s2 2p8
c)
1s2 2s2 2p1
d)
1s2 2s2 2p3
12.
What is this element?
1s22s22p63s23p64s23d104p6
a)
Argon
b)
Krypton
c)
Selenium
d)
Bromide
13.
How many valence electrons does phosphorus have?
a)
5
b)
2
c)
8
d)
15
14.
What is the charge of an atom that has lost one electron?
a)
-1
b)
-2
c)
+1
d)
+2
15.
What is the charge of an atom that has gained one electron?
a)
-1
b)
-2
c)
+1
d)
+2
16.
What is the electronic configuration of sodium?
a)
1s22s22p63s1
b)
[Ne]3s1
c)
1s22s22p7
d)
Two of the choices are correct
17.
What is the electronic configuration of iron?
a)
1s22s22p63s23p64s23d6
b)
1s22s22p63s23p63d8
c)
1s22p63s23p64s23d6
d)
1s22s22p63s23p64s13d6
18.
What atom is represented here?
a)
Carbon
b)
Nitrogen
c)
Oxygen
d)
Fluorine
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