Lesson 7.1 Covalent Bonding

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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Which group of elements form covalent bonds and why

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

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Potential energy increases when atoms get too close because

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A bond length is

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

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

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How many electrons are shared in a single bond?

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How many electrons are shared in a double bond?

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How many electrons are shared in a triple bond?

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The strongest covalent bond is a

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

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5

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

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

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

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

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3

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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3

Lesson 7.1 Covalent Bonding

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

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

Potential energy increases when atoms get too close because

A bond length is

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

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

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

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

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?

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

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

Potential energy increases when atoms get too close because

A bond length is

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

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

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

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

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?