Covalent Bonds review

What is a covalent bond?

• A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

• A covalent bond is a chemical bond that involves the repulsion of like charges between atoms.

• A covalent bond is a chemical bond that involves the transfer of electron pairs between atoms.

• A covalent bond is a chemical bond that involves the attraction of opposite charges between atoms.

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How are covalent bonds formed?

• Two atoms share electrons.

• Two atoms transfer electrons.

• Two atoms repel each other.

• Two atoms attract each other with magnetic force.

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How do you determine the number of covalent bonds an atom can form?

• The number of covalent bonds an atom can form is determined by the number of electrons in its inner shells.

• The number of covalent bonds an atom can form is determined by the number of valence electrons it has.

• The number of covalent bonds an atom can form is determined by the number of protons it has.

• The number of covalent bonds an atom can form is determined by the number of neutrons it has.

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What is the octet rule?

• Atoms tend to gain, lose, or share electrons to have a full outer shell of eight electrons.

• Atoms tend to gain, lose, or share electrons to have a full outer shell of ten electrons.

• Atoms tend to gain, lose, or share electrons to have a full outer shell of four electrons.

• Atoms tend to gain, lose, or share electrons to have a full outer shell of six electrons.

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What is the difference between a single covalent bond and a double covalent bond?

• The difference between a single covalent bond and a double covalent bond is the type of atoms involved.

• The difference between a single covalent bond and a double covalent bond is the number of electron pairs being shared.

• The difference between a single covalent bond and a double covalent bond is the strength of the bond.

• The difference between a single covalent bond and a double covalent bond is the length of the bond.

How do you represent a covalent bond in a Lewis structure?

• By a line or a pair of dots

• By a circle

• By a dashed line

Where are the shared electrons in oxygen?

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How many electrons are being shared with each oxygen atom?

• 1
• 3
• 4
• 2

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Both of these oxygen atoms now have how many atoms each?

• 4

• 6

• 8

• 2

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In the picture how any electrons in total are being shared?

• 4

• 6

• 8

• 2