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Molybdenum

What the name means: The word molybdenum derives from the Greek word molybdos, meaning "like lead".

Molybdenum

Molybdenum atom

Molybdenum atom

 

 

(Note: Can also exist as 1+, 2+, 3+, 4+ or 5+ ions.)

Molybdenum ion

 

Molybdenum ion

Who identified molybdenum?: Molybdenum was identified by the Swedish chemist, Carl Wilhelm Scheele in 1778. Scheele was investigating the mineral molybdenite that was thought to be composed of carbon and lead compounds. He proved that, although carbon and lead were present in small amounts, the main component of the mineral was a compound of a new element, molybdenum.

Molybdenum was obtained in an impure form by another Swedish chemist, Peter Jacob Hjelm in 1781.

 

Properties

MOPROPS

STP = standard temperature and pressure.
Usually considered as room temperature and pressure.

 

About molybdenum: Molybdenum is not found as the free element in nature. Minerals containing molybdenum compounds are often associated with lead compounds, which is why molybdenum was mistaken for lead by early chemists. Molybdenum is used in steel to increase its strength. It is also a trace element in living things. Humans need about 0,01mg of molybdenum in their daily diet.

 

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