Covalent Bonds

Question 1

Iodine and potassium form an ionic bond. Iodine has seven electrons in its outer shell, and potassium has one electron in its outer shell. Which conclusion is best supported by this information?

Revolt · Accepted Answer

Iodine becomes an ion with a negative 1 charge.

Question 2

What will most likely occur if sulfur forms an ionic bond with another element? (Click on the icon for the periodic table to view sulfur)

Revolt · Accepted Answer

Sulfur will accept electrons.

Question 3

Alice added sodium chloride to water and stirred the water for several minutes. Alice is most likely trying to demonstrate that ionic compounds

Revolt · Accepted Answer

can dissolve.

Question 4

These diagrams show two atoms of fluorine and an atom of magnesium.

Revolt · Accepted Answer

A magnesium atom donates two electrons to the fluorine atoms → Each fluorine atom accepts one of the electrons → The magnesium atom becomes a +2 ion → Each fluorine atom becomes a -1 ion

Question 5

David observed properties of four different compounds, only one of which is an ionic compound. His observations are shown in the chart.

Revolt · Accepted Answer

Z

Question 6

Which two elements will most likely form an ionic bond? (Click on the periodic table icon to view these elements)

Revolt · Accepted Answer

magnesium and bromine

Question 7

Anna stated that ionic compounds have high melting points and low boiling points. She said that this demonstrates that ionic compounds have strong bonds because a lot of energy is needed to break the electrical forces that hold the bonds together.Which statement best describes Anna’s error?

Revolt · Accepted Answer

Strong electrical forces will make ionic compounds have high boiling points.

Question 8

Which product relies on the ability of ionic compounds to conduct electricity?

Revolt · Accepted Answer

batteries

Question 9

Which characteristic(s) makes ionic compounds useful as a building material?

Revolt · Accepted Answer

hardness and brittleness

Question 10

Which shows the correct order of steps during the formation of an ionic bond?

Revolt · Accepted Answer

Electrons are transferred → Ions form → Ions are attracted to each other

Covalent Bonds Answers

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