Nickel and Cadmium are two metals that are commonly used in a variety of applications. Nickel is a silvery-white metal that is highly resistant to corrosion and is often used in the production of coins, jewelry, and other items. Cadmium is a soft, bluish-white metal that is used in batteries, electroplating, and other industrial processes. Both metals are toxic if ingested or inhaled, so it is important to take safety precautions when working with them.