Introduction to Chemical Bonding

Multiple Choice

How many valence electrons in this structure?

• 6
• 5
• 4
• 7

Multiple Choice

An electron has a ___ charge.

• no charge

• positive

• negative

• it depends

Multiple Choice

A proton has a ___ charge.

• positive

• negative

• no charge

• it depends

Multiple Choice

What are valence electrons?

• sum of the protons and neutrons

• protons minus electrons

• electrons in the inner shells

• electrons in the outer shell

Multiple Choice

The _____ describes the atoms in a compound.

• Chemical Equation

• Chemical Formula

• Chemical Symbol

• Coefficient

Multiple Choice

How many elements are in C₆H₁₂O_6?

• 1

• 2

• 3

• 4

Multiple Choice

Which is the correct formula for:

3 Hydrogen (H)

1 Sulfur (S)

4 Oxygen (O)

• H₃SO₄

• HSO₄

• H₄S₃O

• H₂O

Multiple Choice

A is defined as - strong attractive force between atoms or ions in a molecule or compound.

• Chemical Bond

• Emotional Bond

• BFFs

• Element

Multiple Choice

A chemical bond is formed when elements _______ or ________ electrons.

• transfer or share

• explode or create

• run away from or run towards

Multiple Choice

Why don't noble gases form bonds?

• Noble gases do form bonds

• They all have a full octet

• They only bond with each other

Multiple Choice

Atoms form compounds to become more ---

• reactive

• stable

• explosive

• toxic

Multiple Choice

Atoms lose, gain, or ______electrons to get a stable outer energy level.

• share

• split

• create

• destroy

Multiple Choice

The electrons that are lost, gained, or shared in chemical bonds are called ________________.

• valence electrons

• chemical electrons

• Lewis electrons

• none of the above

Multiple Choice

Why do chemical bonds form?

• so the number of protons equals the number of electrons

• to fill the outermost electron level

• so an atom can become unstable

Multiple Choice

According to the Octet Rule, atoms of elements react with each other in order to attain ____ electrons in their outermost energy level or shell.

• 2

• 4

• 8

• 10

Multiple Choice

An atom of Neon complies with the Octet Rule because it has ___ electrons in its outer shell.

• 10

• 8

• 2

• 7

Multiple Choice

Ionic bonds form between ---

• nonmetals.

• metals and nonmetals.

Multiple Choice

Cations are ions with _________ charge.

• positive

• negative

• gains

• loses

Multiple Choice

Atoms that gain an electron have an electric charge of ---

• -1.

• -2.

• +1.

• +2.

Multiple Choice

An atom that has a charge because it has a different number of electrons (more or less) is called an ---

• isotope

• valence electron

• ion

• octet

Multiple Choice

What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

Multiple Choice

The chemical bond formed when two atoms share electrons is call a(n)

• covalent bond

• ionic bond

• metallic bond

• electron bond

Multiple Choice

How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

Multiple Select

Which of these are a property of ionic bonds?

• Only metals can form ionic bonds

• Non-metals and metals form ionic bonds

• Elements in ionic bonds steal or lose electrons

• Can be easily broken by the presence of water

Multiple Select

Which of these are a property of a covalent bond?

• The strongest chemical bond

• The stronger element steals electrons

• Elements share or somewhat shares electrons

• Only bond when the elements are different charges

• Only charged elements can form covalent bonds

Multiple Choice

When two nonmetals do not share electrons evenly, the resulting covalent bond will be

• nonpolar

• polar

• ionic

• metallic

Multiple Choice

What type of bond is shown in this image?

• Ionic
• Polar Covalent
• Nonpolar Covalent
• Van der Waals Force