Name: yttrium
Symbol: Y
Atomic number: 39
Atomic weight: 88.90585 (2)
Group in periodic table: 3
Group name:
Period in periodic table: 5
Block in periodic table: d-block
CAS registry ID: 7440-65-5
Yttrium has a silvery-metallic lustre. Yttrium turnings ignite in air. Yttrium is found in most rare-earth minerals. Moon rocks contain yttrium and yttrium is used as a "phosphor" to produce the red colour in television screens.