Rare elemental metal series

Rare element metals usually refer to those metallic elements that are found in relatively small quantities in the earth's crust and have special physical and chemical properties. These elements occupy a specific position in the periodic table and have unique electronic configurations and chemical activities, thus playing a key role in industry and technology. Rare element metals are used in a wide range of applications including, but not limited to, specialty steels, alloys, electronic devices, aerospace materials, and more.

Rare earth metals are a particularly important class of rare element metals, including scandium, yttrium, and the lanthanide series of 17 elements. These elements are widely used in high-tech fields such as electronics, aerospace, energy, etc. due to their unique physical and chemical properties.
Other rare metals such as lithium, titanium, rubidium, and cesium also play important roles in specific fields. For example, lithium is used in the manufacture of batteries, titanium is widely used in the aerospace industry because of its high strength and lightness, and rubidium and cesium have an irreplaceable position in precision scientific instruments and special materials.