Metallic Bonding Quiz

Why do metals conduct electricity?

• Because they contain covalent bonds

• Because the delocalized electrons can carry a charge

• Because they have high melting points

• Because they are malleable

Which of the following is a characteristic property of metallic bonds?

• Low boiling point

• High electrical resistivity

• Lustrous appearance

• Poor thermal conductivity

Why are metals malleable and ductile?

• The layers of atoms in a metal can slide over each other

• The delocalized electrons are stationary

• The metallic bonds are very weak

• Metals are composed of molecules

Which property of metals is explained by the presence of delocalized electrons?

• Brittleness

• High melting point

• Poor electrical conductivity

• Low density

Why are metals typically dense?

• Because they contain interstitial atoms

• Because the metal atoms are closely packed in a regular pattern

• Because they have covalent bonding

• Because they are composed of large molecules

What happens to the valence electrons of metal atoms in metallic bonding?

• They are transferred to non-metal atoms

• They are shared with specific adjacent atoms

• They become delocalized and free to move throughout the metal

• They are removed completely from the metal

What is metallic bonding?

• The transfer of electrons from metal to non-metal

• The sharing of electrons between non-metals

• The attraction between positive metal ions and delocalized electrons

• The repulsion between negative ions and electrons

How do metallic bonds affect the boiling and melting points of metals?

• They decrease both boiling and melting points

• They increase both boiling and melting points

• They have no effect on boiling and melting points

• They increase boiling points but decrease melting points

What is the role of electrons in the structure of a metallic bond?

• They are shared equally among all atoms

• They are localized to individual atoms

• They form a 'sea' of electrons around the metal ions

• They are involved in ionic bonding

What is the reason behind the lustrous appearance of metals?

• High boiling point

• Low electrical resistivity

• Presence of delocalized electrons

• Low thermal conductivity