The lanthanide series consists of 15 chemical elements in the periodic table, ranging from lanthanum (atomic number 57) to lutetium (atomic number 71). These elements are known for their similar properties, including high melting points and the ability to form strong magnetic materials. They are often found together in nature, primarily in minerals like monazite and bastnasite. Lanthanides are commonly used in various applications, such as in neodymium magnets, which are essential for electric motors and headphones. Additionally, they play a crucial role in the production of phosphors for LED lights and screens, enhancing their brightness and color quality.