What is lanthanides metals?

Lanthanide metals, also known as lanthanides, are a series of 15 chemical elements in the Periodic Table, ranging from lanthanum (La, atomic number 57) to lutetium (Lu, atomic number 71). These elements are known for their similar properties, including high melting points, significant magnetic susceptibility, and the ability to form various oxidation states. Lanthanides are primarily used in various high-tech applications, such as in the production of strong permanent magnets, phosphors for lighting and displays, and catalysts in petroleum refining. They are often found together in nature and are typically extracted from minerals like bastnäsite and monazite.