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Chemical Bonding

Total questions: 44

Worksheet time: 48mins

Name
Class
Date
1.

What type of bond occurs between a metal & a non-metal?

a)

covalent

b)

polar

c)

ionic

d)

metallic

2.
A covalent bond is formed between
a)
nonmetal and nonmetal
b)
metal and metal
c)
cation and anion
d)
metal and nonmetal
3.
What type of structure do ionic compounds have?
a)

Tetrahedral arrangement

b)

molecular structure

c)

Giant ionic crystal lattice

d)

Positive ions surrounded by delocalized electrons

4.
The noble gases have how many valence electrons?
a)
1
b)
2
c)
7
d)
8
5.
The alkali metals have how many valence electrons?
a)
1
b)
2
c)
7
d)
8
6.
a)
2
b)
5
c)
10
d)
15
7.
a)
1
b)
2
c)
3
d)
4
8.
a)
4
b)
6
c)
16
d)
34
9.
a)
4
b)
8
c)
18
d)
36
10.
How are covalent bonds explained?
a)

When one atom takes the other atom's electron

b)

When the atom shares an electron with another atom

c)

When the two nucleus merge

d)

When the neutrons leave the nucleus

11.

How many electrons are shared in a single bond?

a)

2 pairs

b)

4

c)

2

d)

1

12.

How many electrons are shared in a double bond?

a)

2

b)

4 pairs

c)

6

d)

4

13.
How many electrons are shared in a triple bond?
a)
6
b)
3
c)
6 pairs
d)
5
14.
What is the correct formula for this molecule?
a)
NH
b)
N3H
c)
NH3
d)
NH4
15.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
16.
Hydrogen needs _____ electrons in its valence shell to be stable.
a)
4
b)
6
c)
8
d)
2
17.

A mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together

a)

Covalent bond

b)

Chemical bond

c)

Lewis structure

d)

Ionic bond

18.

What is the total number of valence electrons in a thiocyanate ion, SCN-?

a)

15

b)

16

c)

17

d)

24

19.
How many Potassium atoms in the formula KMnO4
a)
1
b)
2
c)
3
d)
4
20.

What is the formula unit for a compound made of Ca and F?

a)

CaF2

b)

Ca2F

c)

Ca2F2

d)

CaF

21.
This is a correct dot diagram for fluorine (F)
a)
true
b)
false
22.
This is the correct dot diagram for nitrogen (N)
a)
true
b)
false
23.
How strongly an atom attracts electrons is called....................
a)
Ionization energy
b)
Electronegativity
c)
Electricity
d)
Nuclear force
24.
Which of the following is an acceptable Lewis structure for CH3Cl?
a)
Option A
b)
Option B
c)
Option C
d)
Option D
25.
How many valence electrons do atoms in group 16 have?
a)
4
b)
5
c)
6
d)
7
26.

In a chemical formula, the subscript (e.g., Xn) tells you the ______, whereas the superscript (e.g., Xn) tells you the _______.

a)

charge; state

b)

charge; quantity

c)

quantity; charge

d)

quantity; state

27.

How many electrons total must be shown (including those in bonds) in the Lewis structure of the nitrate ion, NO3–?

a)

33

b)

32

c)

23

d)

24

28.
A mixture of two or more metals is called:
a)
mixture
b)
solution
c)
compound
d)
alloy
29.
An alloy is a mixture of two or more elements, of which at least one is a metal.
a)
 true
b)
false
30.

Metallic bonding is...

a)

a type of covalent bond.

b)

a type of ionic bond.

c)

an attraction between positive ions and a sea of electrons.

31.
Which of these is NOT an alloy?
a)
bronze
b)
copper
c)
brass
d)
stainless steel
32.

If a chemical compound was made up of nitrogen, oxygen, and fluorine, which would be the central atom?

a)

Nitrogen

b)

Oxygen

c)

Fluorine

d)

It's impossible to know

33.

Brass is an alloy

a)

True

b)

False

34.

Zinc and copper make an alloy of ______.

a)

Brass

b)

Gold

c)

Stainless steel

d)

Bronze

35.
What happens when an atom loses an electron?
a)
It becomes Negatively Charged
b)
It remains neutral because the proton also leaves.
c)
It becomes Positively Charged
d)
It stays the same.
36.
Atoms that gain electrons become...
a)
negatively charged
b)
positively charged
c)
remain neutrally charged
d)
21
37.

What type of bond is formed between oxygen and hydrogen? oxygen's EN = 3.5, hydrogen's EN = 2.1

a)

ionic

b)

covalent

c)

metallic

38.

What type of bond is formed between potassium and fluorine? potassium's EN = 0.8, fluorine's EN = 4.0

a)

ionic

b)

covalent

c)

metallic

39.

What type of bond is formed between two nitrogen atoms? Nitrogen's EN = 3.0

a)

ionic

b)

metallic

c)

covalent

40.

How many extra electrons are there in OH–?

a)

1

b)

2

c)

3

d)

There are no extra electrons

41.

Would a chlorine atom be more stable by itself or bonded to another chlorine atom?

a)

To another chlorine atom because it satisfies octet for both

b)

To another chlorine atom because it's lonely by itself

c)

By itself because chlorine already has 8 valence electrons

d)

By itself because chlorine is independent and doesn't require other atoms' help

42.

NO2– is a ____________.

a)

Polyatomic Ion

b)

Cation

c)

Anion

d)

Element

e)

Atom

43.

Al3+ is a ____________.

a)

Polyatomic Ion

b)

Cation

c)

Anion

d)

Atom

e)

Element

44.

What comes first in a formula unit?

a)

Cation

b)

Anion

c)

It doesn't matter

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