H Chm Structure & Bonding Quiz

What is the difference between ionic and covalent bonding?

• Ionic bonding involves the sharing of atoms between electrons, while covalent bonding involves the transfer of electrons from one atom to another.

• Ionic bonding involves the sharing of protons between atoms, while covalent bonding involves the transfer of neutrons from one atom to another.

• Ionic bonding involves the transfer of electrons from one atom to another, while covalent bonding involves the sharing of electrons between atoms.

• Ionic bonding involves the sharing of electrons between atoms, while covalent bonding involves the transfer of electrons from one atom to another.

State the meaning of the term electronegativity.

• The ability of an atom to repel a bonding pair of electrons
• Measure of the tendency of an atom to attract electrons

• Measure of the tendency of an atom to attract a bonding electrons

• Measure of the tendency of an element to attract bonding electrons

What are London dispersion forces?

• Attractions between temporary and induced dipoles

• Attractions between permanent dipoles and other permanent dipoles

• Bonds that are made between two atoms of the same electronegativity

• Bonds that are made between two atoms with different electronegativity

Explain the role of hydrogen bonding in determining the physical properties of substances.

• Hydrogen bonding only affects color and odor of substances

• Hydrogen bonding increases the density of substances

• Hydrogen bonding affects boiling points, melting points, and solubility.

• Hydrogen bonding has no effect on physical properties

Discuss the relationship between intermolecular forces and boiling points of substances.

• The boiling point of a substance is unrelated to the strength of its intermolecular forces.

• Intermolecular forces have no impact on the boiling point of substances.

• Substances with strong intermolecular forces have lower boiling points.

• The boiling point of a substance is directly related to the strength of its intermolecular forces.

The correct reason that argon has a higher melting point than neon is ...

• that neon has stronger LDFs because it has fewer electrons

• that argon has pd-pd i's where neon only has LDFs

• that argon has stronger LDFs because it has more electrons

• that argon is diatomic and so has stronger LDFs

Draw a water molecule and then use a dotted line to show a hydrogen bond between the ethanol molecule and the water molecule you have drawn,

What element has the highest electronegativity?

Name the only element that can form different structures.

Which of the following bonds will be non-polar?

• Be - F

• S - Cl

• N - Br

• C - H