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Writing Electron Configurations

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Orbitals have ______ when they are _______ to the nucleus.

a)

less energy,

closer

b)

more energy,

closer

c)

less energy,

farther

2.

Which of the following orbitals has the LEAST energy of any other?

a)

1s

b)

4d

c)

2s

3.

Which of the following is not a possible orbital?

a)

2p

b)

2s

c)

2d

4.

Which of the following is not a possible configuration>

a)

2p6

b)

2s6

c)

3d10

5.

Which of the following shows the correct order of low energy to higher energy orbitals?

a)

s 2s 2p 2d 3s

b)

1s 1p 2s 2p 3s

c)

1s 2s 2p 3s 3p

6.

What is the missing piece?

1s2 2s2 ___ 3s1

a)

2p6

b)

2p3

c)

3p6

7.

What are the missing pieces?

1s2 2s2 2p6 ___ 3p6 4s2 ___ 4p2

a)

3s2 , 3d10

b)

2p4 , 3d10

c)

3p6 , 3d10

8.

Which is the electron configuration for an OXYGEN atom?

step1- check for correct number of electrons

step 2 - check for correct orbital sequence

step 3 - check for correct electrons in each orbital

a)

1s22s22d4

b)

1s22s22p4

c)

1s22s22p6

9.

What is the electron configuration for POTASSIUM?

step1- check for correct number of electrons

step 2 - check for correct orbital sequence

step 3 - check for correct electrons in each orbital

a)

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

b)

1s2 2s2 2p6 3s2 3p7

c)

1s2 2s1 2p6 3s2 3p5 4s1

10.

What is the electron configuration for MANGANESE?

step1- check for correct number of electrons

step 2 - check for correct orbital sequence

step 3 - check for correct electrons in each orbital

a)

1s2 2s2 2p6 3s2 3p6 4s7

b)

1s2 2s2 2p6 3s2 3p63d6

c)

1s2 2s2 2p6 3s2 3p6 4s2 3d5