Lanthanides

Lanthanides are a group of 15 chemical elements, with atomic numbers 57 through 71. They are part of the f-block of the periodic table and are known for their unique properties, including their ability to form colorful compounds and their use in various technologies.

Overview

The lanthanides are a series of chemical elements that comprise the 15 metallic chemical elements with atomic numbers 57–71, from lanthanum through to lutetium. They are part of the f-block of the periodic table. Lanthanides are also known as the "rare earths."

Properties

Lanthanides are known for their unique properties. They are all metals and they are known for their high melting and boiling points. The lanthanides have large atomic and ionic radii, and complex electronic structures. They also have a strong tendency to form complexes with various substances.

Uses

Lanthanides have a wide range of uses. They are used in the production of phosphors, used in color television screens, and in the production of strong permanent magnets. They are also used in lasers, and in the production of superconductors.

Health and environmental issues

While lanthanides are not particularly toxic, they are often found in conjunction with more dangerous heavy metals. Mining and refining lanthanides can lead to water pollution and habitat destruction.

See also

• Actinides
• Periodic table
• Chemical element
• Rare earth element

Lanthanides Resources
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