Question

lead is malleable, so it can be pounded into flat sheets without breaking. how does the bonding within lead help to explain this property?
metallic bonds involve valence electrons that are removed from one atom and given to another, so the pounding helps the electrons move.
covalent bonds involve valence electrons that are shared between two metal atoms, so the bonds are strong enough to resist the pounding.
metallic bonds involve many valence electrons shared by many atoms, so the bonds can move around as the metal is pounded.
covalent bonds involve valence electrons that are removed from one atom and given to another, so the pounding helps the electrons move.

Explanation:

Lead is a metal. Metallic bonding involves a sea - of electrons where many valence electrons are shared by many atoms. This allows the metal to be deformed (pounded into sheets) as the bonds can adjust and move around during the process. Covalent bonds are not present in metals like lead, and the description of electron transfer in the first and fourth options is incorrect for metallic bonding.

Answer:

C. Metallic bonds involve many valence electrons shared by many atoms, so the bonds can move around as the metal is pounded.