molybdenum
Definition
Molybdenum is a chemical element with the symbol Mo and atomic number 42. It is a silvery-grey, hard, brittle, and ductile metal. It is one of the transition metals.
Molybdenum is found in nature as a free element and in minerals such as molybdenite. It is used in a variety of applications, including:
- Steelmaking: Molybdenum is added to steel to make it stronger and more resistant to corrosion.
- Catalysts: Molybdenum is used in catalysts for a variety of chemical reactions, such as the production of sulfuric acid and nitric acid.
- Superalloys: Molybdenum is used in superalloys, which are used in high-temperature applications, such as jet engines and rocket engines.
- Electrical components: Molybdenum is used in electrical components, such as resistors and capacitors.
- Molybdenum is a relatively rare element, but it is still important because of its many uses.
How can the word be used?
The alloy used in the car's engine is made of molybdenum and steel.
Different forms of the word
Noun: A chemical element with the symbol Mo and atomic number 42. It is a silvery-white, lustrous transition metal with a high melting point.
Adjective: Relating to or containing molybdenum.
Verb: To treat or alloy with molybdenum.
Etymology
The word "molybdenum" comes from the Ancient Greek word "μολυβδαίνω" (molybdaino), which means "to lead." This is because molybdenum was once thought to be a type of lead.
The word "molybdenum" was first used in English in the 17th century. It was originally spelled "molybdaina" or "molybden." The modern spelling of the word was adopted in the 18th century.
Question
What is molybdenum and what can it be used for?