Rhodium

Rhodium is a rare, silvery-white metallic element, part of the platinum group on the periodic table. It is highly reflective and resistant to corrosion, making it valuable for various industrial applications. One of its primary uses is in catalytic converters for cars, where it helps reduce harmful emissions. Rhodium is also used in jewelry for plating, giving a shiny finish and increasing durability. Due to its scarcity and demand, rhodium is one of the most expensive metals, often used in small amounts for its effectiveness in enhancing other materials.