Rhodium

Chemical Formula: Rh
Atomic Number: 45
Atomic Weight: 102.9055
Category: Transition Metal

Rhodium is one of the most rare and the most expensive of the precious metals. Rhodium is often alloyed with platinum or palladium to produce high-temperature and corrosion-resistant alloys. It is also used in the production of three-way catalytic converters. The largest sources of Rhodium are in South Africa, Russia and Canada.