Lanthanum Meaning: Definition, Examples, and Translations
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lanthanum
[หlanฮธษnษm ]
Definition
chemical element
Lanthanum is a chemical element with the symbol La and atomic number 57. It is a silvery-white metal that is part of the lanthanide series of the periodic table. Lanthanum is known for its high reactivity and does not occur freely in nature. Instead, it is usually found in rare earth minerals. Its primary use is in various types of catalysts and in making certain types of glass.
Synonyms
La, atomic number 57.
Examples of usage
- Lanthanum is used in camera lenses.
- The catalyst contained a significant amount of lanthanum.
- Manufacturers added lanthanum to enhance the glass quality.
- Researchers studied lanthanum's properties for new applications.
Translations
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Interesting Facts
Science
- Lanthanum is often used in making camera lenses and projectors because it helps focus light more effectively.
- Its atomic number is 57, placing it in the f-block of the periodic table, which includes elements with similar properties.
- It is not considered a rare element as it is relatively abundant in the Earth's crust compared to many other metals.
Technology
- Lanthanum compounds are essential in the production of certain types of batteries, particularly nickel-metal hydride batteries used in hybrid vehicles.
- In the world of alloy-making, lanthanum is mixed with other metals to enhance their strength and durability.
- This element is crucial in the manufacturing of phosphors, which make the screens of TVs and computer monitors bright.
Cultural Impact
- The element has been a key player in developing modern lighting solutions, contributing to advancements in LED technology.
- Lanthanum has been featured in movies and documentaries discussing rare earth elements and their role in technology.
- Its involvement in clean energy technologies helps highlight the importance of rare earth elements in fighting climate change.
Origin of 'lanthanum'
Main points about word origin
- The name 'lanthanum' comes from the Greek word 'lanthano,' which means 'to be hidden.'
- It was discovered in 1823 by Swedish chemist Johan Gadolin, who recognized the element in a mineral named cerite.
- Lanthanum was one of the first rare earth elements to be isolated due to advancements in chemistry in the 19th century.
The term 'lanthanum' derives from the Greek word 'lanthano,' which means 'to lie hidden.' This etymology reflects the element's discovery in the late 19th century when it was not easily isolable from other rare earth elements. Discovered in 1839 by the Swedish chemist Johan Gadolin, lanthanum was the first of the lanthanide series to be identified. Initially, it was isolated from the mineral cerite. Over the years, advancements in chemistry have allowed for more efficient extraction and applications of lanthanum in various fields, including electronics, optics, and as a component in batteries. As the rare earth elements gained importance in modern technology, lanthanum's significance grew, leading to its inclusion in a variety of innovative products.