Yttrium is a chemical element with the symbol Y and atomic number 39. It is a silvery-metallic transition metal that is part of the lanthanide series. Yttrium is primarily found in minerals such as xenotime and iorinite, and it is often extracted for use in various applications, including electronics and materials science. Yttrium is known for its high melting point and resistance to corrosion, making it valuable in the production of superconductors and LEDs. Additionally, yttrium compounds are used in ceramics and as phosphors in color television tubes and LED displays, enhancing their brightness and efficiency.