Ionic Bonds

Multiple Choice

Why are ionic bonds significant in chemistry?

• They help explain the formation of salts and minerals.

• They are only found in organic compounds.

• They do not affect the properties of substances.

• They are weaker than covalent bonds.

Multiple Choice

Which of the following elements are likely to form anions according to the periodic table and octet rule?

• Chlorine (Cl)

• Magnesium (Mg)

• Sodium (Na)

• Calcium (Ca)

Multiple Choice

Which of the following statements best describes an ion?

• An atom that has gained or lost electrons and now has a positive or negative charge.

• An atom with a full valence shell of electrons.

• An atom that only shares electrons with other atoms.

• An atom that cannot form bonds.

Multiple Choice

What happens to the valence shell of magnesium when it loses two electrons?

• It becomes empty.

• It has 8 valence electrons and is full.

• It gains two electrons.

• It remains unchanged.

Open Ended

Describe the change in the valence shell of chlorine when it gains an electron.

Open Ended

Explain how the octet rule influences the formation of ions, using magnesium and chlorine as examples.

Open Ended

Which element is the metal, sodium or chlorine? How do you know?

Open Ended

How many valence electrons does each element have?

Open Ended

Based on Coulomb's Law, what would you expect to happen to a positively and negatively charged ion like the sodium ion and chlorine ion shown?

Open Ended

What would these elements need to do to become more stable with a full valence shell?

Open Ended

What do you notice about the shape of halite, a crystal made of sodium chloride?

Open Ended

What do you notice about the arrangement of sodium and chlorine in the molecular model?

Open Ended

What type of bonding would you expect to be found in most gems? Why?

Multiple Choice

Which property allows ionic compounds to conduct electricity when dissolved in water?

• The ions can move through the water

• The solution becomes acidic

• The water molecules break apart

• The temperature increases

Open Ended

If ionic compounds are held together by strong attractive forces and therefore have a high melting point, would you expect most ionic compounds to be solids, liquids, or gases at room temperature? Why?

Open Ended

Would you expect anions or cations to be attracted to the negatively charged electrode? Why?

Multiple Select

Which of the following are correct names for ions of iron?

• Iron (II) ion

• Iron (III) ion

• Iron (IV) ion

• Iron (I) ion

Multiple Choice

Which of the following ions are main group metal ions?

• Na⁺

• Fe²⁺

• Cu²⁺

• NH₄⁺

Multiple Choice

What is the correct name for the ion Cl⁻?

• Chloride ion

• Chlorine ion

• Chlorate ion

• Chlorite ion

Open Ended

Explain how the names of binary ionic compounds are formed using the chemical formula and the names of the ions involved.

Multiple Choice

What is the name of the ion with the formula MnO₄⁻?

• Permanganate

• Manganate

• Manganese oxide

• Manganese (IV) oxide

Multiple Select

Which of the following are polyatomic ions?

• N³⁻

• NO₃⁻

• SO₄²⁻

• Cl⁻

Open Ended

Reflecting on what you learned about ionic bonds and ions, what questions do you still have or what would you like to explore further about this topic?

Multiple Choice

What is the difference between a cation and an anion?

• A cation is a positively charged ion, while an anion is a negatively charged ion.

• A cation is a negatively charged ion, while an anion is a positively charged ion.

• Both cations and anions are positively charged ions.

• Both cations and anions are negatively charged ions.