Molybdenum (Mo) is a cool sounding element. I first heard about it in college, mentioned by a professor specializing in cold temperature chemistry. I did not understand why he chose Mo to be a focus of his study at the time. I heard maybe it had something to do with Mo's magnetic behavior near absolute zero.
Molybdenum is a silvery-white, hard, transition metal, discovered in 1778. It was often confused with graphite and lead ore. Molybdenum is used in alloys, electrodes and catalysts. The World War 2 German artillery piece called "Big Bertha" contains molybdenum as an essential component of its steel.
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