wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Unit 4B Electron Configuration

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
2.
What atom matches this electron configuration?
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.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
4
5.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
6.
What do you start electron configuration with?
a)
1s2
b)
1d10
c)
1f14
d)
1p6
7.

What is this element?

1s22s22p63s23p3

a)

Neon

b)

Phosphorus

c)

Aluminum

d)

Potassium

8.
Which electron configuration belongs to Chlorine (Cl)?
a)
1s2s2p3s3p5
b)
1s2s2p3s3p6
c)
1s2s2p3s3p7
9.
There are 4 different types of subshells s,p,d,f
a)
true
b)
false
10.
What is the maximum number of electrons that an orbital can have?
a)
1 electron
b)
2 electrons
c)
3 electrons
d)
4 electrons
11.
How many valence electrons are represented here?
a)
7
b)
5
c)
2
d)
8
12.
How many d orbitals are there in a given sublevel?
a)
1
b)
3
c)
5
d)
7
13.
How many p orbitals are there in a sublevel?
a)
2
b)
1
c)
4
d)
3
14.
How many electrons can the d sublevel hold?
a)
8
b)
10
c)
2
d)
4
15.
What atom matches this electron configuration?
[Xe] 6s2 4f14 5d9
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
16.
What is the shorthand electron configuration for Sulfur atom?
a)
[Ar] 3p4
b)
[He] 3s23p4
c)
[Ne] 3s23p4
d)
[Na] 3s23p3
17.
How many valence electrons does phosphorus have?
a)
5
b)
2
c)
8
d)
15
18.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
19.
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
20.

What does Pauli exclusion principle state ?

a)

states that each electron occupies the lowest energy orbital available

b)

states that -no two electrons in the same orbital can have the same spin

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

21.

What is this element?

1s22s22p63s23p64s23d104p6

a)

Argon

b)

Krypton

c)

Selenium

d)

Bromide

22.
Which of the following is a p block element?
a)
Ca
b)
Ar
c)
Re
d)
Au
23.

What is the shape of a p orbital?

a)

sphere

b)

it's just too complex to think about it

c)

dumbbell

d)

I don't know this stuff.

24.

What is the shape of an s orbital?

a)

sphere

b)

dumbbell

c)

double dumbbell

d)

TOO COMPLEX TO KNOW IT.

25.

Which two would have the same shape?

a)

2p

b)

2s

c)

3d

d)

1s

26.
Which element is depicted from this atomic orbital diagram?
a)
Carbon
b)
Nitrogen
c)
Oxygen
d)
Phosphorus
27.
What is the highest occupied energy level?
a)
4
b)
5
c)
6
d)
7
28.
This orbital diagram represents:  
a)
C
b)
B
c)
N
d)
O
29.

The second shell from the center of an atom can hold how many electrons?

a)

2

b)

6

c)

8

d)

18

30.

Each orbital has at most two electrons that spin in opposite directions.

a)

Pauli exclusion principle

b)

aufbau principle

c)

electron configuration

d)

Hund's rule

31.

Which of the following states that a single electron occupies each orbital within a subshell before electrons begin pairing?

a)

Hund's rule

b)

aufbau principle

c)

pauli exclusion principle

d)

lewis rule

32.
Which orbital shows a violation of the Pauli Exclusion Principle?
a)
A
b)
B
c)
C
d)
D
33.
Which orbital shows a violation of the Aufbau Principle?
a)
A
b)
B
c)
C
d)
D
34.
Which atom is it who has 3 energy levels and 4 valence electrons? 
a)
Carbon
b)
Lithium
c)
Silicon
d)
Aluminum
35.
How can you tell how many valence electrons an atom has? 
a)
APE MAN
b)
By the Group 
c)
By the Period
d)
By the atomic number
36.

What is the shorthand configuration for Tin?

a)

[Xe]5s24d105p2

b)

[Xe]5s24d105p2

c)

[Kr]5p2

d)

[Kr]5s24d105p2

37.

What is the shorthand configuration for Lead?

a)

[Xe]6s24f145d106p2

b)

[Xe]6s25d106p2

c)

[Rn]6s25d106p2

d)

[Rn]6s24f145d106p2

38.

If an orbital holds two electrons and the first one has a counterclockwise spin, what would be the spin of the other electron?

a)

counterclockwise

b)

clockwise

c)

zero

d)

A & B

39.

In the 4th principal energy level, which sublevels are present?

a)

s

b)

s and p

c)

s, p, and d

d)

s, p, d, and f

40.

In the 4th period (not energy level) on the periodic table, how many sublevels do you have? (Check all that apply)

a)

4s

b)

4d

c)

3d

d)

4p