Lesson 7.1 Covalent Bonding

Last updated 3 months ago

22 questions

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Lesson 7.1 Covalent Bonding

Last updated 3 months ago

22 questions

Go to PBS Learning Media Covalent Bonding Tutorial
ca.pbslearningmedia.org/resource/lsps07.sci.phys.matter.covalentbond/covalent-bonding/?student=true
2. The questions below mirror the questions in the tutorial. Answer the questions in the formative as you work through the tutorial.

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How does the movement of electrons change when two atoms are close together?

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What happens if you try to move the atoms very close together?

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Draw that happens when two atoms are close enough to form a covalent bond. Be sure to use arrows to indicate the attraction between the nuclei and the electrons.

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What does a solid single line represent when we draw a covalently bonded molecule?

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What do you add to the element name for the second element in a covalent compound

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Draggable item		Corresponding Item

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Draggable item		Corresponding Item

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Draggable item		Corresponding Item

The type of bonding and strength of bonding in a compound determines its properties. The video below is an excellent explanation of how to tell whether a compound is an ionic compound or a covalent compound.  The answers to questions 19-22 are in the following video.

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In your own words, explain how you can tell from the chemical formula the type of bonding that holds a compound together?

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What is the difference between a lattice (crystal) and a molecule?

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What are three things that ionic compounds and covalent compounds have in common?

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What are three things that different between ionic and covalent compounds?

Go to PBS Learning Media Covalent Bonding Tutorial
ca.pbslearningmedia.org/resource/lsps07.sci.phys.matter.covalentbond/covalent-bonding/?student=true
2. The questions below mirror the questions in the tutorial. Answer the questions in the formative as you work through the tutorial.

How does the movement of electrons change when two atoms are close together?

What happens if you try to move the atoms very close together?

Draw that happens when two atoms are close enough to form a covalent bond. Be sure to use arrows to indicate the attraction between the nuclei and the electrons.

Which group of elements form covalent bonds and why

Nonmetals because they have the ability to attract electrons from other atoms

Metals because they have low ionization energy

Nonmetals because they have high ionization energy

Metals because they are good at taking electrons from other atoms

When the potential energy is lowest, the attraction between the two atoms is strongest.

True

False

Potential energy increases when atoms get too close because

the electrons attract each other

the positive nuclei repel each other

no one knows

the electrons are not shared between the atoms

A bond length is

the distance at which the potential energy is the highest

where that attraction and repulsion forces between the atoms are balanced

the distance at which the potential energy is the lowest

the distance between two atoms that are attracted to each other

The lower the potential energy, the more stable the system.

True

False

What does a solid single line represent when we draw a covalently bonded molecule?

How many electrons are shared in a single bond?

How many electrons are shared in a double bond?

How many electrons are shared in a triple bond?

The strongest covalent bond is a

triple bond

double bond

single bond

What do you add to the element name for the second element in a covalent compound

The greek prefixes are added in the names to show the number of atoms. Match the greek prefix with its number

Draggable item		Corresponding Item
tri		2
nona		3
penta		4
octa		1
mono		5
di		6
tetra		7
hexa		8
septa		9

Which prefix is not used to name the first element in a covalent compound?

tetra

di

tri

mono

Draggable item		Corresponding Item
NO₂		dinitrogen monoxide
NO		nitrogen dioxide
N₂O		dinitrogen trioxide
N₂O₃		nitrogen oxide

Draggable item		Corresponding Item
S₂O		disulfur dichloride
S₂O₃		sulfur dioxide
S₂Cl₂		disulfur trioxide
SO₂		disulfur monoxide

The type of bonding and strength of bonding in a compound determines its properties. The video below is an excellent explanation of how to tell whether a compound is an ionic compound or a covalent compound.  The answers to questions 19-22 are in the following video.

In your own words, explain how you can tell from the chemical formula the type of bonding that holds a compound together?

What is the difference between a lattice (crystal) and a molecule?

What are three things that ionic compounds and covalent compounds have in common?

What are three things that different between ionic and covalent compounds?

Which group of elements form covalent bonds and why

Nonmetals because they have the ability to attract electrons from other atoms

Metals because they have low ionization energy

Nonmetals because they have high ionization energy

Metals because they are good at taking electrons from other atoms

When the potential energy is lowest, the attraction between the two atoms is strongest.

True

False

Potential energy increases when atoms get too close because

the electrons attract each other

the positive nuclei repel each other

no one knows

the electrons are not shared between the atoms

A bond length is

the distance at which the potential energy is the highest

where that attraction and repulsion forces between the atoms are balanced

the distance at which the potential energy is the lowest

the distance between two atoms that are attracted to each other

The lower the potential energy, the more stable the system.

True

False

How many electrons are shared in a single bond?

1

5

4

6

2

3

How many electrons are shared in a double bond?

6

5

1

2

4

3

How many electrons are shared in a triple bond?

6

2

1

4

5

3

The strongest covalent bond is a

triple bond

double bond

single bond

The greek prefixes are added in the names to show the number of atoms. Match the greek prefix with its number

tri

2

nona

3

penta

4

octa

1

mono

5

di

6

tetra

7

hexa

8

septa

9

Which prefix is not used to name the first element in a covalent compound?

tetra

di

tri

mono

NO₂

dinitrogen monoxide

NO

nitrogen dioxide

N₂O

dinitrogen trioxide

N₂O₃

nitrogen oxide

S₂O

disulfur dichloride

S₂O₃

sulfur dioxide

S₂Cl₂

disulfur trioxide

SO₂

disulfur monoxide