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Worksheets

Electron Configuration

Total questions: 30

Worksheet time: 2hrs 31mins

Name
Class
Date
1.

What atom matches this electron configuration?

1s2 2s2 2p6 3s2

a)

Neon

b)

Potassium

c)

Aluminum

d)

Magnesium

2.
Which is the electron configuration for an oxygen atom?
a)
1s22s22p63s23p64s2
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p6
3.
What is the maximum number of electrons that an orbital can have?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
4.

How many d orbitals are there in the d sublevel?

a)

1

b)

3

c)

5

d)

7

5.

How many electrons can the p sublevel hold?

a)

2

b)

1

c)

4

d)

6

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)

Krypton

b)

Argon

c)

Selenium

d)

Bromide

8.
What is the shorthand electron configuration for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p3
9.

How many electrons can the first principle energy level N=1 hold?

a)

1

b)

2

c)

8

d)

0

10.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
11.

What noble gas should be used to write the shorthand configuration for Te?

a)

Ar

b)

Xe

c)

Kr

d)

Sb

12.

Which of the following is a p block element?

a)

Ca

b)

Re

c)

Ar

d)

Au

13.
Electron arrangement that uses arrows
a)
Electron configuration
b)
Shorthand configuration
c)
Lewis dot structure
d)
Orbital diagram
14.

What is the maximum number of electrons that the principle energy level N = 3 can hold?

a)

16 electron

b)

18 electrons

c)

8 electrons

d)

6 electrons

15.

What is the maximum number of electrons that the principle energy level N = 2 can hold?

a)

16 electron

b)

2 electrons

c)

8 electrons

d)

10 electrons

16.

How many orbitals total can the principle energy level N= 4 have?

a)

18 orbitals

b)

32 orbitals

c)

8 orbitals

d)

16 orbitals

17.

How many electrons can a d orbital hold

a)

14

b)

6

c)

2

d)

10

18.

How many electrons can the fourth principle energy level N=4 hold?

a)

16

b)

32

c)

8

d)

64

19.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
20.
What do you start electron configuration with?
a)
1s2
b)
1d10
c)
1f14
d)
1p6
21.
There are 4 different types of subshells s,p,d,f
a)
true
b)
false
22.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
23.
How many atomic orbitals are there in the p sublevel?
a)
2
b)
3
c)
4
d)
5
24.
Which electron configuration belongs to Chlorine (Cl)?
a)
1s2s2p3s3p5
b)
1s2s2p3s3p6
c)
1s2s2p3s3p7
25.

Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?

a)

Hund’s Rule

b)

Aufbau Principle

c)

Pauli Exclusion Principle

d)

Mr Serena's Principle

26.
What is the noble gas configuration for phosphorus?
a)
[Ar] 3p5
b)
[He] 3s2 3p5
c)
[Ne] 3s2 3p3
d)
[Na] 3s2 3p5
27.
[Ne]3s23p5 is the noble gas configuration for which element?
a)
chlorine
b)
fluorine
c)
sulfur
d)
aluminum
28.

What does Pauli exclusion principle state ?

a)

states that each electron occupies the lowest energy orbital available

b)

states that a maximum of two electrons can occupy a single atomic orbital, but only if the electrons have opposite spins

c)

states that single electrons electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals

d)

States that a maximum of one electron can occupy a single atomic orbital

29.

What does Hund's rule state?

a)

States that single electrons must fill only one orbital at a time before moving on

b)

states that each electron occupies the lowest energy orbital available

c)

states that a maximum of two electrons can occupy a single atomic orbital, but if only if the electrons have opposite spins

d)

States that single electrons with the same spin must occupy each energy orbital before additional electrons with opposite spins can occupy the same orbitals

30.

How many electrons can a p orbital hold?

a)

2

b)

6

c)

8

d)

4