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Worksheets

Electron Configurations

Total questions: 17

Worksheet time: 18mins

Name
Class
Date
1.

What atom matches this full electron configuration?

1s22s22p63s23p64s23d10

a)

Zinc

b)

Copper

c)

Nickel

d)

Germanium

2.

What full electron configuration matches an oxygen atom?

a)

1s22s22p63s2, 3p64s23d104p5

b)

1s22s22p4

c)

1s22s22p6

d)

1s22s22p63s23p64s23d1

3.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
4.

Which noble gas electron configuration belongs to Chlorine (Cl)?

a)

[Ne] 3s2 3p5

b)

[Ne] 3s2 3p6

c)

[Ne] 3s2 3p7

5.
How many electrons can the d sublevel hold?
a)
14
b)
10
c)
2
d)
6
6.
How many electrons can the s sublevel hold?
a)
14
b)
10
c)
2
d)
6
7.

Choose the correct Noble Gas configuration for iodine.

a)

[Ar]4s24d104p5

b)

[Kr]5s24d105p5

c)

[Xe]5s25d105p5

d)

none of the above

8.

Each row on the periodic table represents:

a)

an energy level

b)

a sublevel

c)

an electron

d)

an orbital

9.

How many electrons can the first energy level hold?

a)

1

b)

2

c)

8

d)

0

10.

How many electrons can the p sublevel hold?

a)

6

b)

10

c)

8

d)

14

11.

In an electron configuration, what follows 4s?

a)

4p

b)

3d

c)

4s

d)

2f

12.

This could be the dot diagram of

a)

Mg

b)

Cl

c)

C

d)

O

13.

Which of the following is the correct full electron configuration for a sodium atom?

a)

1s1 2s1 3s1

b)

1s2 2s2 2p6 3s1

c)

1s2 2s2 2p6 3s2 3p6 4s1

d)

1s2 2s1

14.

Which of the following is the correct Noble Gas electron configuration for a phosphorus atom?

a)

[Ne] 3s2 3p3

b)

1s2 2s2 3p3

c)

[Ne] 3s2 3p6

d)

1s2 2s2 3s2 2p6 3p3

15.

Which of the following is the correct full electron configuration for a neon atom?

a)

1s2 2s2 2p3

b)

1s2 2s2 2p6 3s1

c)

1s2 2s2 2p6 3s2 3p6 4s2 3d8

d)

1s2 2s2 2p6

16.
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
17.

What is the Noble Gas electron configuration for barium?

a)

[Xe] 6s2

b)

[Rn] 6s2

c)

[Ar] 4s2 3d10 4p5

d)

[He] 2s2 3p1