Final answer:
The predominant bonding type for Mg2Pb is ionic bonding.
Step-by-step explanation:
The predominant bonding type for Mg2+Pb is ionic bonding. Ionic bonding occurs when there is a complete transfer of electrons from one atom to another, resulting in the formation of ions. In this case, Mg2+ donates two electrons to Pb, which gains two electrons to become Pb2-. The attraction between the oppositely charged ions forms the ionic bond. Therefore, the compound formed would be Mg2PbO4.