Nickel and cadmium are both 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 also highly resistant to corrosion and is often used in batteries, electroplating, and other industrial processes. Both nickel and cadmium are toxic if ingested, so it is important to take proper safety precautions when handling them.