Molybdenum

Chemical Formula: Mo
Atomic Number: 42
Atomic Weight: 95.94
Category: Transition Metal

Although first isolated in 1781, molybdenum did not become commercially significant until World War I when it was first used the plating of tanks. Today, molybdenum – or “moly” – has a wide-range of applications due to its ability to withstand extreme temperatures without expanding or softening.