U1T2 Review of types of bonding

Which of the following types of bonds involves the sharing of electrons?

• Ionic bond

• Covalent bond

• Metallic bond

• Dispersion forces

Answer explanation

Covalent bonds involve the sharing of electrons between atoms. Ionic bonds involve the transfer of electrons between atoms. Metallic bonds involve a lattice of positive ions surrounded by a sea of electrons, and van der Waals forces involve weak, temporary attractions between molecules.

Which type of bond involves the transfer of electrons?

• Ionic bond

• Covalent bond

• Metallic bond

• Dispersion forces

Answer explanation

Ionic bonds involve the transfer of electrons between atoms, resulting in the formation of oppositely charged ions. Covalent bonds involve the sharing of electrons between atoms, and metallic bonds involve a lattice of positive ions surrounded by a sea of electrons.

Which type of bond is characterized by a "sea of electrons"?

• covalent bond

• ionic bond

• metallic bond

• dispersion forces

Answer explanation

In metallic bonding, metal atoms are surrounded by a "sea of electrons" that allows them to move freely and conduct electricity.

Which type of bond results from the attraction between oppositely charged ions?

• ionic bond

• covalent bond

• metallic bond

• dispersion forces

Answer explanation

Ionic bonding results from the attraction between positively and negatively charged ions.

Which type of bond is the strongest?

• ionic bond

• covalent bond

• metallic bond

• dispersion forces

Answer explanation

Covalent bonds are generally stronger than ionic bonds because they involve the sharing of electrons between atoms, resulting in a stronger bond. Metallic bonds are also relatively strong, but ionic bonds are typically weaker due to the ease with which ions can be formed and broken apart.

Which of the following types of bonds typically has a high melting point?

• ionic bond

• covalent bond

• metallic bond

• dispersion forces

Answer explanation

Ionic bonds typically have a high melting point because they involve the strong electrostatic attraction between oppositely charged ions. Covalent bonds can also have high melting points, but metallic and dispersion forces tend to have lower melting points.

Which of the following types of bonds typically has a high melting point?

• ionic bond

• covalent bond

• metallic bond

• dispersion forces

Answer explanation

Ionic bonds typically have a high melting point because they involve the strong electrostatic attraction between oppositely charged ions. Covalent bonds can also have high melting points, but metallic and dispersion forces tend to have lower melting points.

Which of the following types of bonds typically forms between nonmetals?

• ionic bond

• covalent bond

• metallic bond

• dispersion forces

Answer explanation

Covalent bonds typically form between nonmetals because they tend to have relatively high electronegativity values and can share electrons to achieve a full valence shell. Ionic and metallic bonds typically form between metals and nonmetals.

Compounds which have only this type of bonds typically has a low boiling point?

• ionic bond

• covalent bond

• metallic bond

• dispersion forces

Answer explanation

There are two kinds of forces, or attractions, that operate in a molecule—intramolecular and intermolecular. Intramolecular forces are the forces that hold atoms together within a molecule. Intermolecular forces are forces that exist between molecules.

Strongest

Ionic compounds with Ion to ion attraction between ions and dispersion forces

Covalent compounds containing hydrogen bonds and dispersion forces

Polar covalent compounds have Dipole-dipole interactions and dispersion forces

Nonpolar covalent compounds have dispersion forces

lowest

Which type of bond typically results in substances that are brittle and break easily?

• ionic bond

• covalent bond

• metallic bond

• dispersion forces

Answer explanation

Ionic compounds tend to be brittle and break easily due to the strong ionic bonds