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Chemical bond

Total questions: 45

Worksheet time: 1hrs 11mins

Name
Class
Date
1.
Ionic bonds are between...
a)
nonmetals and nonmetals
b)
carbon and oxygen
c)
metals and nonmentals
d)
hydrogen and chlorine
2.
Covalent bonds are between...
a)
two or more nonmetals
b)
sodium and chlorine
c)
metals and metals
d)
metals and nonmetals
3.
What kind of chemical bond forms between a metal and a nonmetal?
a)
ionic
b)
covalent
c)
fake
d)
metallic
4.
What is the name for an ion with a positive charge?
a)
cation
b)
anion
c)
onion
d)
union
5.
What is the name for an ion with a negative charge?
a)
cation
b)
anion
c)
onion
d)
union
6.
What kind of bond forms when atoms share electrons?
a)
ionic
b)
covalent
c)
artificial
d)
univalent
7.
What kind of bond forms when atoms exchange electrons?
a)
ionic
b)
covalent
c)
artificial
d)
univalent
8.
What are valence electrons?
a)
sum of the protons and neutrons
b)
protons minus electrons
c)
electrons in the inner shells
d)
electrons in the outer shell
9.
If an atom loses two electrons what charge will it have?
a)
-2
b)
-1
c)
+1
d)
+2
10.
If an atom gains two electrons what charge will it have?
a)
-2
b)
-1
c)
+1
d)
+2
11.
If an atom has 7 protons and 7 electrons what charge will it have?
a)
-2
b)
-1
c)
0
d)
+2
12.
If an atom has 7 protons and 7 electrons what charge will it have?
a)
-2
b)
-1
c)
0
d)
+2
13.
Predict the bond that will form between Be and F.
a)
Ionic
b)
Covalent
14.

Predict the bond that will form between S and O.

a)

Ionic

b)

Covalent

15.

What type of diagram is this?

a)

Lewis Dot Structure

b)

Bohr Model

c)

Alkali Diagram

d)

Chemical Diagram

16.
How many valence electrons in this structure?
a)
6
b)
5
c)
4
d)
7
17.
Atoms form compounds when the compound is more ______________ than the separate atoms.  Noble gases are more _________than other elements because they have a complete outer energy level.
a)
reactive
b)
stable
c)
explosive
d)
toxic
18.
Atoms gain lose, gain, or ______electrons to get a stable outer energy level.
a)
share
b)
split
c)
create
d)
destroy
19.
A ____________is the force that holds atoms together in a compound.
a)
Chemical Formula
b)
Chemical Reaction
c)
Chemical Bond
d)
Synthesis Reaction
20.
A _______ is a charged particle because it has more or fewer electrons than protons.  When an atom _____ an electron, it becomes a positively charged ion.  When an atom ____an electron, it becomes a negatively charged ion.
a)
isotope, gains, loses
b)
isotope, loses, gains
c)
ion, loses, gains
d)
ion, gains, loses
21.
Why do elements bond?
a)
To be friends
b)
To create a new element
c)
To become stable
22.
Same repel, opposites
a)
avoid
b)
attract
c)
push
d)
pull
23.
Where are metals located on the periodic table?
a)
Blue
b)
Green
c)
Red
24.
Where are the nonmetals located on the periodic table? 
a)
Blue
b)
Red
c)
Green
25.
Where are the metalloids located on the periodic table?
a)
Blue
b)
Red
c)
Green
26.

Why do atoms bond?

a)

to find a date

b)

to become bigger

c)

to go to dog jam

d)

to become stable

27.

What is the chemical formula of this compound?

a)

N3H

b)

NH3

c)

3NH

d)

NH2

28.
How many valence electrons does oxygen have?
a)
2
b)
4
c)
5
d)
6
29.
An electron has what kind of charge?
a)
positive
b)
negative
c)
neutral
d)
none of these
30.

What type of bond is shown in the image?

a)

Hydrogen

b)

Ionic

c)

Covalent

31.

Which of the following is NOT a covalent bond?

a)

K2S

b)

H2O

c)

I2

d)

CO2

32.

Which of the following atoms is most likely to bond with another atom?

a)
b)
c)
d)
33.

An ionic bond is formed when

a)

Valence electrons are shared.

b)

Valence electrons surround the cations.

c)

Valence electrons are transferred between atoms.

d)

Valence electrons are completely transferred between two metals.

34.

What is the number of valence electrons of Oxygen?

a)

1

b)

2

c)

6

d)

8

35.
What is the charge on a Hydrogen ion?
a)
+1
b)
1
c)
2
36.
Ionic compounds are formed when one or more valence electrons are transferred from _____
a)
a nonmetal atom to a metal atom
b)
a nonmetal atom to a nonmetal atom
c)
a metal atom to a nonmetal atom
d)
a metal atom to a metal atom
37.

Why don't noble gases form bonds?

a)

Noble gases do form bonds

b)

They all have a full octet

c)

They only bond with each other

38.

In covalent bonds, atoms__________.

a)

gain electrons

b)

lose electrons

c)

transfer electrons

d)

share electrons

39.

Valence electrons are the basis of all chemical bonds.

a)

True

b)

False

40.

Which of the following is the reason why atoms of sodium and chlorine attract each other in a salt crystal?

a)

Sodium has a positive charge and chlorine has a negative charge

b)

Sodium has a negative charge and chlorine has a positive charge

c)

Both have a positive charge

d)

Both have a negative charge

41.

Which of the following is a similarity between ionic and covalent bonds?

a)

Both include the gaining and losing of electrons

b)

Both include the sharing of electrons

c)

Both make the elements more stable

d)

Both are typically found as solids at room temperature

42.

What type of bond is formed by the transfer of electrons as illustrated in this diagram?

a)

Non-polar covalent

b)

Metallic

c)

Ionic

d)

Polar covalent

43.

An atom with 1 valence electron 'needs' a full shell, so it can either gain 7 electrons or lose 1. Which is more likely to occur?

a)

nothing

b)

gain 7

c)

lose 1

44.

Atoms involved in a covalent bond are not charged, while atoms involved in an ionic bond are charged (negative or positive)

a)

True

b)

False

45.

NaCl is the chemical formula for what?

a)

sodium chloride

b)

sodium metal

c)

water

d)

chlorine gas

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