Lead is a heavy metal known for its malleability and resistance to corrosion. It has been used historically in various applications, from batteries to radiation shielding.

Zinc is a bluish-white metal known for its corrosion-resistant properties. It is widely used in galvanizing, alloys, and various industrial applications.

Nickel is a silvery-white metal known for its strength, ductility, and resistance to corrosion. It is extensively used in stainless steel, batteries, and various industrial applications.