Metallic bonding

Why are metals excellent conductors of heat and electricity?

• Because they have a high number of valence electrons
• Because their valence electrons are delocalized and free to move
• Because their valence electrons are tightly bound to the nucleus
• Because they have a low number of valence electrons

What is the main factor that determines the strength of the metallic bond?

• The type of metal
• The attraction between positively charged metal ions and the negatively charged electron sea
• The size of the metal atoms
• The number of valence electrons

What is the main difference between metallic bonding and ionic or covalent bonding?

• Metallic bonding involves the sharing of electrons between atoms, while ionic and covalent bonding do not.
• Metallic bonding involves the confinement of valence electrons to individual bonds, while ionic and covalent bonding do not.
• Metallic bonding involves the transfer of electrons between atoms, while ionic and covalent bonding do not.
• Metallic bonding involves the collective behavior of valence electrons, while ionic and covalent bonding involve the sharing or transfer of electrons.

Which property of metals is explained by the non-directional nature of metallic bonding?

• Luster and reflectivity
• High thermal and electrical conductivity
• Malleability and ductility
• High melting and boiling points

Which of the following is NOT a property of metals explained by metallic bonding?

• Luster and reflectivity
• Malleability and ductility
• Brittleness
• High thermal and electrical conductivity

Which type of bonding involves the collective behavior of valence electrons?

• Ionic bonding
• Covalent bonding
• Metallic bonding
• All of the above

Which type of bonding involves the sharing or transfer of electrons between atoms?

• Ionic bonding
• Covalent bonding
• Metallic bonding
• All of the above

Which model is used to explain the nature of metallic bonding?

• The electron shell model
• The electron sea model
• The electron cloud model
• The electron bond model

Which of the following is NOT a unique property of metals explained by metallic bonding?

• Low melting and boiling points
• High thermal and electrical conductivity
• Malleability and ductility
• Luster and reflectivity

Which model is used to explain metallic bonding?

• The electron bond model
• The electron cloud model
• The electron sea model
• The electron shell model