Atomic Number 74 (Noun)
Meaning
A heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite.
Classification
Nouns denoting substances.
Examples
- Tungsten, whose atomic number is 74, is a hard, dense, gray to white transition metal that is highly corrosion-resistant.
- The atomic number 74 was given to the new element when it was discovered in the early 19th century.
- Historically, the name of the element with atomic number 74 has been changed several times due to its chemical properties being similar to those of other elements.
- In 1783, the element with atomic number 74 was first identified by Spanish chemists who succeeded in isolating it from a mineral found in a mine in Santiago.
- The symbol for the element with atomic number 74 is 'W', which is derived from the German name 'Wolfram' for the ore tinstone.