Final answer:
When lead and iron bond, they form a metallic bond characterized by a 'sea of electrons' that allows for conductivity and malleability.
The correct answer is C.
Step-by-step explanation:
The bond that lead (Pb) and iron (Fe) would form is a metallic bond. Both lead and iron are metallic elements, and when metals bond with other metals, they share a delocalized 'sea of electrons'.
This sea allows for electrons to move freely throughout the structure, creating a metallic bond that is characterized by a crystalline lattice of positively charged ions surrounded by freely mobile electrons. This type of bonding is responsible for the typical properties of metals, such as electrical conductivity and malleability.