Exploring Chemical Bonding

What is an ionic bond?

• A temporary attraction between molecules due to dipoles.

• An ionic bond is a chemical bond formed through the electrostatic attraction between oppositely charged ions.

• A bond that occurs only in metals and nonmetals.

• A bond formed by the sharing of electrons between atoms.

Which type of bond involves the sharing of electrons?

• Metallic bond

• Hydrogen bond

• Covalent bond

• Ionic bond

What are the characteristics of metallic bonding?

• High thermal conductivity

• Characteristics of metallic bonding include delocalized electrons, electrical conductivity, malleability, ductility, and luster.

• Absence of luster

• Brittleness

Give an example of a compound formed by ionic bonding.

• Carbon dioxide (CO2)

• Water (H2O)

• Methane (CH4)

• Sodium chloride (NaCl)

What is the main difference between ionic and covalent bonds?

• Ionic bonds involve electron transfer and ion attraction, while covalent bonds involve electron sharing.

• Ionic bonds are stronger than covalent bonds in all cases.

• Ionic bonds are formed only between metals and non-metals.

• Covalent bonds involve the transfer of protons between atoms.

Describe how metallic bonds contribute to the properties of metals.

• Metallic bonds cause metals to be dull and non-reflective.

• Metallic bonds contribute to the conductivity, malleability, ductility, and luster of metals.

• Metallic bonds prevent electrical conductivity in metals.

• Metallic bonds make metals brittle and weak.

What type of elements typically form ionic bonds?

• Metals and nonmetals

• Metals and metals

• Nonmetals and nonmetals

• Noble gases and metals

How do covalent bonds affect the physical properties of a substance?

• Covalent bonds have no impact on solubility.

• Covalent bonds determine the mass of a substance.

• Covalent bonds affect physical properties by influencing melting/boiling points, solubility, and electrical conductivity.

• Covalent bonds only affect color and texture.

What is a molecule?

• A molecule is a single atom.

• A molecule is a group of atoms bonded together.

• A molecule is a type of chemical reaction.

• A molecule is a mixture of different substances.

Explain why metals are good conductors of electricity.

• Metals are good insulators, preventing the flow of electric current.

• Metals are poor conductors because they have tightly bound electrons.

• Metals are good conductors of electricity due to the presence of free-moving electrons that facilitate the flow of electric current.

• Metals conduct electricity due to their high thermal resistance.