What are the three main differences between the types of metals?

The three main differences between metals are their reactivity, electrical conductivity, and malleability. Some metals react more readily with other substances, like alkali metals, while others are more stable and resistant to corrosion. Metals also vary in their ability to conduct electricity, with some being Excellent conductors (such as copper) while others are poor conductors. Additionally, metals differ in their malleability, with some being easily shaped and molded (like gold) while others are more rigid.