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Chemical Bonding - Lewis Dot Diagrams

Total questions: 54

Worksheet time: 49mins

Name
Class
Date
1.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
2.

This is a Bohr Diagram of Aluminum. How many valence electrons does Aluminum have?

a)

3

b)

4

c)

5

3.

How many valence electrons does Tin (Sn) have?

a)

8

b)

7

c)

5

d)

4

4.

How many valence electrons does Lithium (Li) have?

a)

8

b)

1

c)

5

d)

2

5.

How many valence electrons does Bromine (Br) have?

a)

5

b)

6

c)

7

d)

8

6.
Valence electrons are: 
a)
Electrons farthest away from the nucleus
b)
Electrons closest to the nucleus
c)
Electrons that just come and go - they don't stay with the atom
d)
Electrons in the second shell
7.

How many electrons can the first shell hold?

a)

2

b)

4

c)

6

d)

8

8.
Which of the following has a full valence shell?
a)
Oxygen
b)
Neon
c)
Barium
d)
Carbon
9.
What is a valence electron?
a)
an electron that is found in the outermost shell of an atom. 
b)
an electron found in the innermost shell of an atom.
c)
an electron found in the middle shell.
10.

According to the diagram below, how many bonds will this atom be able to make?

a)
1
b)
2
c)
3
d)
4
11.

This is a correct dot diagram for neon (Ne)

a)

true

b)

false

12.

Which of these is incorrect?

a)
b)
13.
Most elements will gain or lose electrons so that they end up with _______ valence electrons.
a)
2
b)
6
c)
8
d)
10
14.

Which of these is correct?

a)
b)
c)
15.
This could be the dot diagram of 
a)
Ne
b)
Si
c)
Al
d)
Be
16.

How many dots would you put around carbon, a group 14 element?

a)

4

b)

6

c)

8

d)

18

17.

This could be the dot diagram of

a)

Mg

b)

Cl

c)

C

d)

O

18.
This is the correct dot diagram for nitrogen, group 15.
a)
true
b)
false
19.
This could be the dot diagram of
a)
Mg
b)
Cl
c)
C
d)
O
20.

Which of the following is the correct electron-dot diagram for an atom with an electron configuration of 2-8-18-5?

a)
b)
c)
d)
21.

How many dots would you put around carbon, a group 14 element?

a)

4

b)

6

c)

8

d)

18

22.

This could be the dot diagram of

a)

Mg

b)

Cl

c)

C

d)

O

23.

This is a correct dot diagram for neon (Ne)

a)

true

b)

false

24.
This is the correct dot diagram for nitrogen, group 15.
a)
true
b)
false
25.
This could be the dot diagram of
a)
Mg
b)
Cl
c)
C
d)
O
26.

How many electrons should sodium, atomic number 11, have around its Lewis dot model?

a)

1

b)

2

c)

3

d)

4

27.

How many valence electrons does Aluminum Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

28.

How would you draw a Lewis dot diagram for Magnesium?

a)
b)
c)
d)
29.

Which of the following shows a correct Lewis dot structure?

a)
b)
c)
d)
30.

Which of these is correct?

a)
b)
c)
31.

This is a Bohr Diagram of Aluminum. How many valence electrons does Aluminum have?

a)

3

b)

4

c)

5

32.

How many valence electrons does Tin (Sn) have?

a)

8

b)

7

c)

5

d)

4

33.

How many valence electrons does Lithium (Li) have?

a)

8

b)

1

c)

5

d)

2

34.

How many valence electrons does Bromine (Br) have?

a)

5

b)

6

c)

7

d)

8

35.
Valence electrons are: 
a)
Electrons farthest away from the nucleus
b)
Electrons closest to the nucleus
c)
Electrons that just come and go - they don't stay with the atom
d)
Electrons in the second shell
36.
What is a valence electron?
a)
an electron that is found in the outermost shell of an atom. 
b)
an electron found in the innermost shell of an atom.
c)
an electron found in the middle shell.
37.

According to the diagram below, how many bonds will this atom be able to make?

a)
1
b)
2
c)
3
d)
4
38.

This is a correct dot diagram for neon (Ne)

a)

true

b)

false

39.
Most elements will gain or lose electrons so that they end up with _______ valence electrons.
a)
2
b)
6
c)
8
d)
10
40.

Which of these is correct?

a)
b)
c)
41.

How would you draw a Lewis dot diagram for Magnesium?

a)
b)
c)
d)
42.

Which of the following shows a correct Lewis dot structure?

a)
b)
c)
d)
43.

What atom does this Bohr Model represent?

(a)  

44.

How many bonding sites does this atom have?

(a)  

45.

What atom does this Bohr Model represent?

(a)  

46.

What atom does this Bohr Model represent?

(a)  

47.

Why does nitrogen form 3 covalent bonds?

a)

Nitrogen loses three electrons when it forms covalent bonds.

b)

Nitrogen gains three electrons when it forms covalent bonds.

c)

Nitrogen requires five additional eelctrons to become stable.

d)

Three covalent bonds to nitrogen complete its octet.

48.

How many dots does one hydrogen atom have?

a)

one

b)

two

c)

eight

d)

more than one answer is correct

49.

Why does chlorine form a single covalent bond?

4 lines
50.

Place the correct dots around oxygen

51.

Which of the following is the correct Lewis dot diagram for germanium:

a)

b)

c)

d)

52.

Draw the Lewis dot diagram for arsenic (As):

53.

Draw the Lewis dot diagram for bromine (Br):

54.

Draw the Lewis dot diagram for strontium (Sr):

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