Covalent Bonds Pre-Quiz

Question 1
When forming covalent bonds atoms:

Share protons.

Share neutrons.

Share electrons.

All of the above.

None of the above.

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Question 2
A molecule is two or more atoms that:

Are hooked together.

Stay together.

Act as one unit.

All of the above.

None of the above.

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Question 3
Noble gases tend to share electrons.

True

False

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Question 4
Sodium (Na) is likely to make covalent bonds.

True

False

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Question 5
Carbon (C) is likely to make covalent bonds.

True

False

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Question 6
Each bromine (Br) atom will contribute one electron to form a covalent bond.

True

False

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Question 7
Each oxygen (O) atom will contribute two electrons to form a covalent bond.

True

False

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Question 8
CO likely has:

Covalent bonds.

Ionic bonds.

None of the above.

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Question 9
MgO likely has:

Covalent bonds.

Ionic bonds.

None of the above.

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Question 10
SO₂ likely has:

Covalent bonds.

Ionic bonds.

None of the above.

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Question 11
Ionic compounds are formed by transferring electrons.

True

False

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Question 12
A covalent bond is formed when two atoms share electrons.

True

False

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Question 13
In molecules atoms stay together due to the sharing of electrons.

True

False

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Question 14
For substances where the atoms share electrons the molecule is the smallest piece of the substance that retains the properties of that substance.

True

False

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Question 15
Atoms will share electrons to have the same number of electrons as a noble gas.

True

False

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Question 16
When atoms share electrons, each atom claims the electron so that they both have the number that is needed.

True

False

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Question 17
Two chlorine atoms could combine by each atom contributing one electron and both atoms sharing both electrons.

True

False

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Question 18
Two oxygen atoms could combine by each atom contributing two electrons. These electrons will be shared with the other atom so that both atoms will effectively have a total of 10 electrons, like the noble gas neon.

True

False

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Question 19
Sharing electrons binds atoms together.

True

False

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Question 20
Metal atoms don't usually share electrons with other atoms.

True

False

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Question 21
Most molecules are formed between non-metals.

True

False

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Question 22
The non-metals are found in the upper right-hand portion of the periodic table.

True

False

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Question 23
Alkanes have

Only single bonds

One or more double bonds.

One or more triple bonds.

Unsaturated structures.

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Question 24
Alkenes have

Only single bonds

One or more double bonds.

One or more triple bonds.

Saturated structures.

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Question 25
Alkynes have

Only single bonds

One or more double bonds.

One or more triple bonds.

Saturated structures.

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